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3M Urethane Foam Tape 4318, Charcoal Gray, 3/8 in x 36 yd, 125 mil, 24 rolls per case

Hisco #:00021200674761-31196

MFG #:4318

Non-cancellable. Orders for this product cannot be cancelled after the order is placed. But once received, the items may be returned pending prior approval from Hisco customer service.
Our Price: $31.41 RL
List Price: 36.40 RL
Manufacturer Lead Time When Not In Stock26 days
Minimum Order QTY: 24
Item must be ordered in multiples of 24
QuantityPriceSave
7230.87Save 2%

3M™ Urethane Foam Tape 4318 is a conformable, low-density, open-cell foam tape with a pressure sensitive acrylic adhesive on one side. This tape will adhere to a variety of substrates and can be used in numerous mounting applications to dampen sound and create a clean and durable product.

Seals Out Moisture, Dust and Drafts
3M™ Urethane Foam Tape 4318 is 1/8 in. thick, comprised of a soft conformable, low-density, open-cell foam with a pressure sensitive acrylic adhesive on one side. The adhesive is protected by a silicone treated paper liner. It offers excellent cushioning characteristics while providing high absorbency to seal out moisture, dust and drafts. It can perform under a wide range of temperatures. Special note: Extra care should be taken when handling to avoid damaging tape.

Recommended Applications


Cushion and dampen sound in electronics such as printers, keyboards, computers, aircraft lights and automotive dashboards
Register covers
Recessed lighting
Door, window and cabinet seals


Excellent Shear Holding Strength with 3M™ Adhesive 430
3M™ Urethane Foam Tape 4318 features 3M™ Adhesive 430. This pressure sensitive, modified acrylic adhesive provides high initial quick-stick to a variety of surfaces and substrates. It has an excellent chemical resistant and shear holding strength, even at elevated temperatures. Adhesive 430 is designed to perform at temperatures up to 180°F (82°C) in the short term and 150°F (70°C) long term. 

Protect Sensitive Components
The adhesion of 3M™ Single-Coated Foam Tapes is typically satisfactory within 20 minutes and continues to build with additional time. The adhesive is protected by a thick, silicone treated paper liner and has a firm, high-density foam. This design offers an attractive and clean appearance after application. 

What is Open Cell Foam?
Open cell foams are commonly used between component panels where a degree of separation is needed to dampen or prevent vibration, as a thermal insulation barrier and to protect against contamination, but where a measure of airflow is still necessary, such as with electronic components where air flow helps keeps components cool.

3M 4318 Features:
  • Charcoal gray, 0.125 in. (3 mm) soft conformable, low-density, open-cell foam design helps seal out air, dust and light when compressed
  • Excellent cushioning characteristics and high absorbency
  • Dampens sounds and absorbs vibration when used in electronic applications
  • Offers high initial quick-stick to multiple substrates
  • Provides excellent shear strength and high temperature performance
3M 4318 Specifications:
  • Color: Charcoal Gray
  • Package Quantity: 24 RLS
  • Specifications: FAR 25.853 B-3N/A
  • Width: 0.37 in

Product Description

3M™ Urethane Foam Tape 4318 is a conformable, low-density, open-cell foam tape with a pressure sensitive acrylic adhesive on one side. This tape will adhere to a variety of substrates and can be used in numerous mounting applications to dampen sound and create a clean and durable product.

Seals Out Moisture, Dust and Drafts
3M™ Urethane Foam Tape 4318 is 1/8 in. thick, comprised of a soft conformable, low-density, open-cell foam with a pressure sensitive acrylic adhesive on one side. The adhesive is protected by a silicone treated paper liner. It offers excellent cushioning characteristics while providing high absorbency to seal out moisture, dust and drafts. It can perform under a wide range of temperatures. Special note: Extra care should be taken when handling to avoid damaging tape.

Recommended Applications


Cushion and dampen sound in electronics such as printers, keyboards, computers, aircraft lights and automotive dashboards
Register covers
Recessed lighting
Door, window and cabinet seals


Excellent Shear Holding Strength with 3M™ Adhesive 430
3M™ Urethane Foam Tape 4318 features 3M™ Adhesive 430. This pressure sensitive, modified acrylic adhesive provides high initial quick-stick to a variety of surfaces and substrates. It has an excellent chemical resistant and shear holding strength, even at elevated temperatures. Adhesive 430 is designed to perform at temperatures up to 180°F (82°C) in the short term and 150°F (70°C) long term. 

Protect Sensitive Components
The adhesion of 3M™ Single-Coated Foam Tapes is typically satisfactory within 20 minutes and continues to build with additional time. The adhesive is protected by a thick, silicone treated paper liner and has a firm, high-density foam. This design offers an attractive and clean appearance after application. 

What is Open Cell Foam?
Open cell foams are commonly used between component panels where a degree of separation is needed to dampen or prevent vibration, as a thermal insulation barrier and to protect against contamination, but where a measure of airflow is still necessary, such as with electronic components where air flow helps keeps components cool.

3M 4318 Features:
  • Charcoal gray, 0.125 in. (3 mm) soft conformable, low-density, open-cell foam design helps seal out air, dust and light when compressed
  • Excellent cushioning characteristics and high absorbency
  • Dampens sounds and absorbs vibration when used in electronic applications
  • Offers high initial quick-stick to multiple substrates
  • Provides excellent shear strength and high temperature performance
3M 4318 Specifications:
  • Color: Charcoal Gray
  • Package Quantity: 24 RLS
  • Specifications: FAR 25.853 B-3N/A
  • Width: 0.37 in

Technical Information

Brand3M
Series4318
Product TypeFoam Tape
Backing MaterialFoam
Adhesive MaterialAcrylic
Carrier MaterialUrethane Foam
Material CategoryPlastic
ColorCharcoal Gray
Primary ColorGray
Width0.37 in
Height9.9 in.
Length0.276 in.
Thickness1/8in
Density2lb/ft³
Tensile Strength25psi
Resistance PropertiesSurface Resistant; Mold Resistant; Solvent Resistant; Fuel Resistant; Temperature Resistant; UV Resistant
ApplicationsRecessed Lighting, Door, Window and Cabinet Seals
Maximum Operating Temperature+250°F
Minimum Operating Temperature-20°F
Package Quantity24 RLS
Maximum Storage Temperature80
Minimum Storage Temperature60
Weight: 0.4

Additional Resources

Our Price: $31.41 RL
List Price: 36.40 RL
 
Minimum Order QTY: 24
Item must be ordered in multiples of 24
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