EternaBond® FGT BC-1241

1 of 35 products in this brand
EternaBond® FGT BC-1241 is a highly compressible PVC foam core encapsulated with a high-tack butyl adhesive/sealant. This flexible material easily conforms to corners and irregular contours. It provides a secure seal that helps protect against water penetration and prevents corrosion and moisture damage. Furthermore, it eliminates the need for cap sealing by gasketing, thereby improving quality.

Product Type: Gasket Tape, Solvent free (100% Solids) Adhesive

Application Area: Bus Body, Bus Window, Freezer, Marine Applications, Metal Building, Modular Windows, RV Floor, RV Window

Compatible Substrates & Surfaces: Metal

Features: Corrosion Resistant, Good Moisture Resistance, High Dust Control, High Solids Content, Long Shelf Life, Tacky, Water Resistant

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Backing Material Type

Features & Benefits

Labeling Claims
EternaBond® FGT Features
  • Reliable primary seal that eliminates need for cap sealing
  • Proven track record in automotive gasketing for 30+ years
  • High tack adhesive allows for single person install
  • 100% solids - Zero VOC
  • High grade butyl will not cold or hot flow eliminating unsightly ‘oozing’

Applications & Uses

Compatible Substrates & Surfaces
Basic Use

EternaBond® FGT is used as a sealant against moisture and dust elements for various applications including:

  • Freezer seals
  • Bus body and window
  • Metal building
  • Marine sealing
  • RV window
  • Floor seals
  • Modular windows


Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Density (Foam only)7.0Ibs/ft³ASTM D-1667
Hardness60.0-ASTM D-2240, Shore 00
Water Absorption*0.2%NTP-35
Tensile Strength80.0psiNPT-7
Burn Rate (Flammability)1.0in/minFMVSS-302
Application Properties
ValueUnitsTest Method / Conditions
Service Temperature- 34 - 82°C-
Application Temperature10 - 52°C-

Meets Requirements of:

  • Ford : ESB-M3G143-A2, WSB-M4G341-A
  • Navistar : TMS-6917, TMS-6910
Technical Data
Physical Properties Typical Value Test Method
Water Penetration (Tested at 30% Compression) Pass - No Leaks AAMA 810.0
Cold Flex (at 20°F) Pass - No Cracking AAMA 810.0

*Tested at 30% Compression

Technical Details & Test Data

EternaBond® Secure Seal

EternaBond® FGT foam core allows for outstanding flexibility to irregular contoured surfaces and thermal expansion of substrates thus eliminating moisture ingression for the life of the vehicle.

EternaBond® FGT BC-1241 - Eternabond® Secure Seal

Packaging & Availability

Product Dimensions
Stock Type Dimensions
Flat 3/16"x1/2" (5x12 mm) diameter x 53 LF per roll
20 rolls per case (20 lb. gross wt.) 45 CS/PLT

Note: Additional sizes are available upon request.


Storage & Handling

Shelf Life
1 Year
Storage Conditions

Store material in original unopened container below 32°C (90°F).