18 Best Heavy Duty Silicone Rubber Heat Sheets of 2022 – Romance University

After hours researching and comparing all models on the market, Romance University finds out Top 18 Best Heavy Duty Silicone Rubber Heat Sheets of 2022. Check our ranking below.

2,102 Reviews Scanned

Rank No. #1

Silicone Rubber Sheet,Heat Resistant, Heavy Duty,High Grade 60A,12 x 12 Inch, 1/25 Inch Thickness for DIY Gaskets, Pads, Seals, Crafts, Flooring,Cushioning of Anti-Vibration, Anti-Slip

FUNCTION:The silicone rubber sheet has extraordinary durability, stretchability and strength.It has long-lasting wear resistance, oil resistance and heat resistance. It remains strong and flexible under various temperatures and conditions,
MULTIPURPOSE:Waterproof, shock absorption, sound insulation, dustproof, heat insulation, sealing, insulation.
APPLICATION:Used for DIY gaskets, pads, seals, crafts, floors, shockproof, non-slip, and soundproof cushioning. It can be used to seal pipelines and even protect floors, automobiles, air conditioners, furniture protection. Can be used for speakers, sports equipment, vents, automobiles, ships, etc. through its cushioning properties.
EASY TO CUT: The rubber sheet is 1/25 inch thick and easy to customize. It can be cut to size with scissors or a blade, and it is easy to bend into any shape, suitable for any DIY project.
ODOR CONTROL :Vanishing odors, ensuring a pleasant experience. No foul smells to spoil your vibes. Crafted for odor-free comfort. No more nose-pinching moments – just pure usability!

Rank No. #2

2PCS Silicone Rubber Sheet, Heat Resistant, Heavy Duty, Smooth Finish, 12 x 12 Inch, 1/8 Inch Thickness for DIY Gaskets, Seals, Flooring, Bumpers, Protection (Black)

✔ Multi Function: The silicone sheet remains firm and flexible when used at a wide range of temperatures, famous for their long service life, cushioning, sealing wear-resistant, shock-absorbing, impact-resistant, waterproof, insulating, flexible and other functions.
✔ Wide Application: 1/8 inch thickiness, easy to customize. It can be used to seal pipelines and even protect floors, automobiles, air conditioners, furniture protection. Used for DIY gaskets, pads, seals, crafts, floors, shockproof, non-slip, and soundproof cushioning. Also can be used for speakers, sports equipment, vents, automobiles, ships, etc. since its cushioning properties.
✔ High Quality Material: The rubber sheet is Silicone, can be used to food related areas. It has the excellent material properties you would expect.
✔ Continous Use Temp: -60 To 200 Celsius Degrees, Excellent resistance to heat (dry air), Remains flexible at low temperatures of -40ºC. Keep constant even at high temperatures, Good electrical insulation.
✔ Satisfaction Guarantee: We strive to provide you with best quaility product and customer experience as possible. Any questions, please contact us directly.

Rank No. #3

YTYIJIE Silicone Rubber Sheet,Heat Resistant, Heavy Duty,High Grade 60A,12 x 12, 1/25 "Thick for DIY Gaskets, Pads, Seals, Crafts, Flooring,Cushioning of Anti-Vibration, Anti-Slip (1/25" Thick, 1)

MULTIPURPOSE: This silicone sheet is odorless, and heat-resistant. It has excellent flexibility and can be stretched repeatedly. It is widely used in the kitchen, bathroom, car, refrigerator, and other DIY projects.
HEAT RESISTANT: The maximum operating temperature of this silicone sheet is 450°F (230°C). It can be used for a long time at high temperatures.
DURABLE: The silicone sheet has good tear resistance,oil resistance, ozone resistance, and weather resistance. It has a long service life under normal temperature conditions.
EASY TO CUT & CLEAN: You can cut this silicone sheet to any size and shape with scissors or a knife. And it is easy to clean, just rinse it with water or neutral detergent.
100% SATISFACTION: If you are not satisfied with our products, please contact us, we will give you a satisfactory solution within 24 hours.

Rank No. #4

Silicone Rubber Sheet, Heat Resistant, Heavy Duty, Smooth Finish, 12 x 12 Inch, 1/8 Inch Thickness for DIY Gaskets, Seals, Flooring, Bumpers, Protection (Red)

✔ Multi Function: The silicone sheet remains firm and flexible when used at a wide range of temperatures, famous for their long service life, cushioning, sealing wear-resistant, shock-absorbing, impact-resistant, waterproof, insulating, flexible and other functions.
✔ Wide Application: 1/8 inch thickiness, easy to customize. It can be used to seal pipelines and even protect floors, automobiles, air conditioners, furniture protection. Used for DIY gaskets, pads, seals, crafts, floors, shockproof, non-slip, and soundproof cushioning. Also can be used for speakers, sports equipment, vents, automobiles, ships, etc. since its cushioning properties.
✔ High Quality Material: The rubber sheet is Silicone, can be used to food related areas. It has the excellent material properties you would expect.
✔ Continous Use Temp: -60 To 200 Celsius Degrees, Excellent resistance to heat (dry air), Remains flexible at low temperatures of -40ºC. Keep constant even at high temperatures, Good electrical insulation.
✔ Satisfaction Guarantee: We strive to provide you with best quaility product and customer experience as possible. Any questions, please contact us directly.

Rank No. #5

Silicone Rubber Sheet,Heat Resistant, Heavy Duty,High Grade 60A,12 x 12 Inch, 1/25 Inch Thickness for DIY Gaskets, Pads, Seals, Crafts, Flooring,Cushioning of Anti-Vibration, Anti-Slip

FUNCTION:The silicone rubber sheet has extraordinary durability, stretchability and strength.It has long-lasting wear resistance, oil resistance and heat resistance. It remains strong and flexible under various temperatures and conditions,
MULTIPURPOSE:Waterproof, shock absorption, sound insulation, dustproof, heat insulation, sealing, insulation.
APPLICATION:Used for DIY gaskets, pads, seals, crafts, floors, shockproof, non-slip, and soundproof cushioning. It can be used to seal pipelines and even protect floors, automobiles, air conditioners, furniture protection. Can be used for speakers, sports equipment, vents, automobiles, ships, etc. through its cushioning properties.
EASY TO CUT: The rubber sheet is 1/25 inch thick and easy to customize. It can be cut to size with scissors or a blade, and it is easy to bend into any shape, suitable for any DIY project.
GUARANTEE: Our products and services will give you 100% satisfaction. Please contact us if you have any questions.

SaleRank No. #6

JTS Silicone Rubber Sheet High Temp, Heat Resistant, Heavy Duty, Smooth Finish, 7 X 7 Inch, 1/4 Inch Thickness for DIY Gaskets, Seals, Flooring, Orange Commercial Grade Made in USA

🟢 100% silicone rubber sheet is flexible, resistant to heat, and durable
🟢 Smooth on Both Sides, this material is easy to cut, sew, and glue
🟢 Durable and long-lasting, silicone rubber sheeting is ideal for a variety of applications
🟢 With a wide range of temperatures from -60 degrees Fahrenheit to 450 degrees Fahrenheit, silicone rubber sheeting can be used for a variety of projects
🟢 JETS Product # 0304-290707014

Rank No. #7

uyoyous 80x40x1/8” Solid Rubber Sheet Heavy Duty Rubber Sheet Silicone Rubber Roll Sheeting High Temperature Heat Protection Silicone Large Waterproof Styrene Butadiene Rubber Mat Black

Super High Quality Rubber - Made of high quality silicone rubber,These silicone rubber sheet has extraordinary durability, stretchability and strength.It has long-lasting wear resistance, oil resistance and heat resistance. It remains strong and flexible under various temperatures and conditions
Function - uoyoyus thin sheet rubber have the function of Waterproof, shock absorption, sound insulation, dustproof, heat insulation, sealing, insulation.
DIY Size - The DIY rubber gaskets is 1/8 inch thick and easy to customize. It can be cut to size with scissors or a blade, and it is easy to bend into any shape, suitable for any DIY project.
Application - Used for DIY gaskets, pads, seals, crafts, floors, shockproof, non-slip, and soundproof cushioning. It can be used to seal pipelines and even protect floors, automobiles, air conditioners, furniture protection. Can be used for speakers, sports equipment, vents, automobiles, ships, etc. through its cushioning properties.
Package Included - 1 Pcs * 40x80 inch,Thickness 1/8 in.THK Tolerances: +/-0.01 or 0.02" synthetic rubber sheet

Rank No. #8

MATNIKS Silicone Rubber Sheet 6x6-inch by 1/8 Black [3-pack] Duro Shore A65/ High Temperature Heavy Duty for Gaskets DIY Material Supports Leveling Sealing Bumpers Protection Abrasion Covers Vibration

👍 3 SILICONE RUBBER SHEETS - Includes 3 Black Sheets of Rubber 6x6 by 1/8 in (15.2x15.2x0.32cm)
✂️ DO IT YOURSELF (DIY) MATERIAL - Great for your home and workplace. Cuts easily w knife/scissors.
🌡️ LOW/HIGH TEMPERATURE resistance silicone rubber broad temperature range -100ºF to 400ºF
⚒️ APPLICATIONS - gaskets vibration reduction insulation leveling abrasion cushioning protection
💪 MATERIAL - Silicon Rubber Gasket Material Duro Shore A60 (+/- 5) Tensile Strength 6Mpa, Elongation 400%

Rank No. #9

MATNIKS Silicone Rubber Sheet 12x12-inch by 1/16 Black Duro A65 High-Temperature Heavy Duty Gaskets DIY Solid Material Supporting Pads Leveling Seal Bumpers Protection Covers Anti-Slip no leaks

👍 SILICONE RUBBER SHEET - Includes 1 Black rubber sheet of Rubber 12x12 by 1/16 inch (30.5cm x 30.5cm x 0.38cm) +/- 10% tolerance ideal for silicone gasket material to seal
✂️ DO IT YOURSELF (DIY) SILICONE SHEET MATERIAL - Great for your home and workplace. This Rubber sheet cuts easily with a knife or scissors and good for indoor or outdoor use.
🌡️ LOW/HIGH TEMPERATURE resistance silicone rubber broad temperature range -100ºF to 400ºF. Ideal for high temp or low temp applications. Is UV resistance
⚒️ APPLICATIONS - Use for Diy Gaskets, Pads, Seals, Crafts, Strips, Shock Proof, Vibration Reduction Insulation, Leveling, Cushioning, Protection, Heat Gasket, Rubber Sheeting Material,
💪 MATERIAL PROPERTIES- This Silicone Rubber Gasket Material has extraordinary durability, stretchability, strength and long-lasting wear resistance. Duro Shore A60 (+/- 5) Tensile Strength 6Mpa, Elongation 400%

SaleRank No. #10

Frienda 2 Pcs 12 x 12 in Silicone Rubber Sheet, 1/16 in Heat Resistant Gasket Material Heavy Duty Solid Rubber Pads for DIY Crafts, Cushioning, Flooring, Anti Vibration, Anti Slip

Package List: the package contains 2 pieces of rubber gasket sheet in black, measuring approx. 12 x 12 x 1/16 inches, this size can fully satisfy your various needs, and they can be reliable and convenient tools for your work, and various tasks and projects
Desirable Performance: the silicone pads adopt desirable durability, stretchability, and strength, they are not easy to break, tear, or wear out after frequent use, and the tensile strength is approx. 700 psi, elongation is approx. 400%, 50 Shore A Durometer, resist to oils, and other materials, providing you with resilience and stability
Ideal for High and Low Temperature: the silicone sheets can withstand temperatures ranging from approx. -100 °F to 400 °F, ideal for various outdoor activities, remaining stable and maintaining its physical properties
Wide Applications: the gasket materials can be applied for DIY gaskets, cushions, seals, crafts, strips, shockproof, vibration damping insulation, leveling, cushioning, protection, thermal gaskets, rubber sheet materials, and more, providing reliability and performance in various challenging conditions
Easy to Cut: the silicone gasket material can be cut to the length or shapes you need with a knife or scissors, providing you with convenience and flexibility, ensuring its applicability in different use cases

SaleRank No. #11

2PCS Silicone Rubber Sheet, 12 x 12 Inch, 1/8 Inch Thickness, Heat Resistant, Heavy Duty Rubber Sheets for DIY Gaskets, Padding, Seals, Anti-Slip Mat, Flooring Protection

Versatility: Rubber Sheet has excellent durability, stretch, strength and water resistance, maintaining strength and flexibility even in a wide range of temperatures and conditions.
Good Cushioning: Rubber strips not only has good sealing performance, but also absorbs shock and vibration well. Therefore, it can be used for speakers, sports equipment, vents, automobiles, ships and so on.
Outstanding Role: Waterproof, shock absorption, sound insulation, heat insulation, sealing, insulation, and also has flame retardant properties.
Easy To Cut: The rubber sheet is 1/8 inch thick, easy to cut into desired shapes and sizes for any DIY projects. Size: (12 inches x 12 inches x 1/8 inch)
Wide Applications: Rubber sheets can be used to make gaskets, vibration damping, waterproofing, leveling objects, abrasion resistance, floor cushioning, hammer protection, electrical insulation, noise reduction and other projects.

Rank No. #12

Frienda 2 Pcs Silicone Rubber Sheet, 12 x 12 Inch, 1/8 Inch White Rubber Pad, Heavy Duty Heat Resistant Rubber Gasket Material for Gaskets DIY Seals, Crafts, Flooring, Anti Vibration, Anti Slip

Package List: the package contains 2 pieces of silicone rubber sheets in white, with smooth surfaces, measuring approx. 1/8 x 12 x 12 inches, your various needs can be satisfied by these silicone rubber sheets, and they can be reliable and convenient tools for your DIY gaskets, pads, seals, crafts, flooring, and more
Durable and Stretchability: the silicone pads feature not only durability, but also stretchability, and strength, they are break resistant, tear resistant, not easy to wear out after frequent use, and the tensile strength is approx. 700 psi, elongation is approx. 400%, 50 Shore A Durometer, resist to oils and other materials, you can use them with confidence
Suitable for High and Low Temperature: the rubber sheets can be contacted with food and can withstand temperatures ranging from approx. -100 °F to 400 °F, they will not lose their durability and resilience you can use them on various outdoor activities, and more
Versatile Applications: the rubber sheet can be applied for garage, family, industrial environments, and various DIY projects, also suitable for padding, vibration reduction, insulation, flat finding, wear, buffer protection, and more, providing reliability and performance on various challenging conditions
Easy to Cut: the silicone sheets for gasket can be cut to the length or shapes you need with a knife or scissors, providing you with convenience and flexibility, ensuring its applicability in different use cases, better serving you on different occasions

Rank No. #13

MYOYAY 118"x40"x1/8" Solid Rubber Sheet Heavy Duty Silicone Rubber Roll Sheeting High Temperature Protection Large Waterproof Solid Styrene Butadiene Rubber Mat for DIY Pads Cushioning Flooring, Black

Super High Quality Rubber - Made of high quality silicone rubber,These silicone rubber sheet has extraordinary durability, stretchability and strength.It has long-lasting wear resistance, oil resistance and heat resistance. It remains strong and flexible under various temperatures and conditions
Function - uoyoyus thin sheet rubber have the function of Waterproof, shock absorption, sound insulation, dustproof, heat insulation, sealing, insulation.
DIY Size - The DIY rubber gaskets is 1/8 inch thick and easy to customize. It can be cut to size with scissors or a blade, and it is easy to bend into any shape, suitable for any DIY project.
Application - Used for DIY gaskets, pads, seals, crafts, floors, shockproof, non-slip, and soundproof cushioning. It can be used to seal pipelines and even protect floors, automobiles, air conditioners, furniture protection. Can be used for speakers, sports equipment, vents, automobiles, ships, etc. through its cushioning properties.
Package Included - 1 Pcs * 40x118 inch,Thickness 1/8 in synthetic rubber sheet

Rank No. #14

2 Pack Silicone Rubber Sheet,Heat Resistant, Heavy Duty,Commercial Grade 70A,12 x 6Inch, 1/8 Inch Thickness for DIY Gaskets, Pads, Seals, Crafts, Flooring,Cushioning of Anti-Vibration, Anti-Slip (2)

The rubber sheet is 1/8 inch thick and easy to customize. It can be cut to size with scissors or a blade, and it is easy to bend into any shape, suitable for any DIY project
The silicone rubber sheet has extraordinary durability, stretchability and strength.It has long-lasting wear resistance, oil resistance and heat resistance. It remains strong and flexible under various temperatures and conditions.
Used for DIY gaskets, pads, seals, crafts, floors, shockproof, non-slip, and soundproof cushioning. It can be used to seal pipelines and even protect floors, automobiles, air conditioners, furniture protection. Can be used for speakers, sports equipment, vents, automobiles, ships, etc. through its cushioning properties.
Waterproof, shock absorption, sound insulation, dustproof, heat insulation, sealing, insulation.
Resistant silicone pad rubber sheet 6 x 12 inch 1/8 inch gasket Maximum operating temperature: 380°F -Feel free to DIY to meet your various needs! Rubber pads are the best choice for absorbing shock and vibration.

Rank No. #15

Black Silicone Rubber Sheet,Heat Resistant, Heavy Duty,High Grade 60A,12 x 12 Inch, 1/8 Inch Thickness for DIY Gaskets, Seals, Crafts,Pads, Cushioning of Anti-Vibration, Anti-Slip,Flooring

Easy to cut: 1/8 inch thick rubber sheet, easy to customize. It can be cut to the right size with scissors or blades, and easily bent into any shape, suitable for any DIY project.
Purpose: Used for DIY gaskets, gaskets, seals, handicrafts, floors, shock proof, anti-skid and sound insulation buffers. It can be used to seal pipes and even protect floors, cars, air conditioners and furniture. Through its cushioning performance, it can be used for loudspeakers, sports equipment, vents, cars, ships, etc.
Multipurpose: waterproof, shock absorption, sound insulation, dust prevention, heat insulation, sealing and insulation.
Functions: Silicone rubber sheet has extraordinary durability, tensile property and strength. It has durable wear resistance, oil resistance and heat resistance. It is still firm and flexible under various temperatures and conditions.
Guarantee: Our products and services will make you 100% satisfied. If you have any questions, please contact us.

Rank No. #16

WochiTV Translucent Silicone Rubber Sheet, 12" Wide x 1/4" Thick x 12" Long Heat Resistant Rubber Mat for DIY Gaskets Material, Pads, Sealing, Cushion, Microwave Oven Protection

Silicone Rubber Materials: Made from high quality silicone rubber, which gives it excellent thermal stability, weather resistance, and electrical insulation properties.
Wide Range Tempereature: The silicone rubber mat remains flexible and elastic in a wide range of temperatures from -76 ℉ to 450 ℉, ideal for lining, sealing joints, plumbing, and protective covers. It's both easy to work with and long-lasting.
Strength & Flexibility: With the impressive aprox 900 PSI, 300 Elongation, and Duro Shore A60 (+/- 5), our silicone rubber is a durable gaskket material. It can be widely used in DIY gaskets, pads, and crafts, cushioning anti-vibration, reducing unwanted vibration in washing and drying machines or stereo, etc.
Easy to Cut: The tranceluent rubber sheet is simple to cut into the shape and size you require using scissors or a blade, making it perfect for DIY projects. Additionally, it can serve as a replacement for damaged rubber products of the same kind.
What You Get: You will get a solid neoprene rubber roll 1/4" (.25") Thick x 12" Wide x 12" Long and our 100% Guarantee for a refund to seal pipe, door, faucet repair, DIY gasket washers, insulate electrical wires, or protecte items with cushion properties.

Rank No. #17

Silicone Rubber Sheet Rolls Heat Resistant Rubber Pad 12X12 inch, 1/8" Thick Silicone Grade Rubber Gasket DIY Material, Supports, Leveling, Sealing, Bumpers

Package including: 1 pcs Silicone Grade Rubber Gasket Material 1/8x12 x12 inch (3.0mmx305mmx305mm)
Use the Rubber Sheet for projects like gasket creation, vibration reduction, water insulation, leveling objects, abrasion, floor cushioning, hammering protection, electric insulation, sound reduction. Keep constant even at high temperatures, Good electrical insulation
Resistant to ultra-violet light, ozone and weathering processing,pharma ceutical and cosmetic manufacturing area
Excellent resistance to heat (dry air), at +260º C continuous and +260º C intermittent.Remains flexible at low temperatures of -40ºC
Keep constant even at high temperatures, Good electrical insulation

SaleRank No. #18

Flexible Heat Resistant Silicone Rubber Sheeting, High Temp,Smooth Finish, Red 1/8 by 12 by 12 inch

Made of high quality silicone rubber, sheets are 305mm wide and available in 3mm, hardness: 60+/-5 Shore A
The rubber sheet is resistant to ultra-violet light, ozone and weathering processing,waterproof, good for gasket material
Continous use Temp: -60 To 200 Celsius Degrees , Excellent resistance to heat (dry air),Remains flexible at low temperatures of -40ºC.Keep constant even at high temperatures, Good electrical insulation
Applicatio: gaskets, pads, washers,leveling objects， floor cushioning, electric insulation, sound reduction.
Package included: 1 Pcs 305x305mm,Thickness 3mm (1/8x12x12 inch) Red Silicone rubber Sheet

How Do You Buy The Best Heavy Duty Silicone Rubber Heat Sheets?

Do you get stressed out thinking about shopping for a great Heavy Duty Silicone Rubber Heat Sheets? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Heavy Duty Silicone Rubber Heat Sheets, which is why we have assembled a comprehensive list of the greatest Heavy Duty Silicone Rubber Heat Sheets available in the current market. We’ve also come up with a list of questions that you probably have yourself.

Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Heavy Duty Silicone Rubber Heat Sheets that you consider buying. Your questions might include the following:

Is it worth buying an Heavy Duty Silicone Rubber Heat Sheets?
What benefits are there with buying an Heavy Duty Silicone Rubber Heat Sheets?
What factors deserve consideration when shopping for an effective Heavy Duty Silicone Rubber Heat Sheets?
Why is it crucial to invest in any Heavy Duty Silicone Rubber Heat Sheets, much less the best one?
Which Heavy Duty Silicone Rubber Heat Sheets are good in the current market?
Where can you find information like this about Heavy Duty Silicone Rubber Heat Sheets?

We’re convinced that you likely have far more questions than just these regarding Heavy Duty Silicone Rubber Heat Sheets, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Heavy Duty Silicone Rubber Heat Sheets, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Heavy Duty Silicone Rubber Heat Sheets. Make sure that you are only using trustworthy and credible websites and sources.

Romance University provides an Heavy Duty Silicone Rubber Heat Sheets buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Heavy Duty Silicone Rubber Heat Sheets currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Heavy Duty Silicone Rubber Heat Sheets has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Heavy Duty Silicone Rubber Heat Sheets?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Heavy Duty Silicone Rubber Heat Sheets.
Customer Ratings: Number ratings grade Heavy Duty Silicone Rubber Heat Sheets objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Heavy Duty Silicone Rubber Heat Sheets.
Product Quality: You don’t always get what you pay for with an Heavy Duty Silicone Rubber Heat Sheets, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Heavy Duty Silicone Rubber Heat Sheets is should be an indication of how long it will work out for you.

Romance University always remembers that maintaining Heavy Duty Silicone Rubber Heat Sheets information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Heavy Duty Silicone Rubber Heat Sheets is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

18 Best Heavy Duty Silicone Rubber Heat Sheets of 2022 – Romance University

How Do You Buy The Best Heavy Duty Silicone Rubber Heat Sheets?

Related Post: