H.B. Fuller EV Seal 901 BCF

H.B. Fuller EV Seal 901 BCF is a highly compressible PVC foam core encapsulated with high-tack butyl adhesive/sealant. This flexible material conforms readily to corners and irregular contours. It gives a secure seal that helps protect against water penetration and prevents corrosion and moisture damage.

Product Type: Solvent free (100% Solids) Sealant

Application Area: Bus Body, Electric Vehicle (EV), Floor, Gaskets, Marine Applications, Windows

Features: Corrosion Resistant, Good Gap Filling Capabilities, Good Tack, Moisture Resistant, Wide Temperature Operating Range

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
CASE Ingredients Features
Ready-to-Use Product Features
Key Attributes
  • Reliable primary seal that eliminates need for cap sealing
  • Proven track record in Automotive gasketing for 30+ years
  • 100% Solids - Zero VOC
  • High grade butyl will not cold or hot flow eliminating unsightly ‘oozing’

Applications & Uses

Application Area
Basic Use

EV Seal 901 BCF 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 and modular windows.


Physical Properties
ValueUnitsTest Method / Conditions
Density (Foam only)7.0lbs/cu. Ft.ASTM D-1667
Water Absorption (at 30% compression, by volume)0.2%NTP-35
Hardness60.0ASTM D-2240
Flammability (Burn rate)1in/minFMVSS-302
Cold Flex (at 20°F)Pass - No cracking-AAMA 810.0
Water Penetration (at 30% compression)Pass - No leaks-AAMA 810.0
Tensile Strength80.0psiNPT-7
Application Technique
ValueUnitsTest Method / Conditions
Service Temperature- 34 to 82°C-
Application Temperature10 - 52°C-

Technical Details & Test Data

EV Seal 901 BCF's Foam Core Formation Structure

EV Seal 901 BCF's 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.

H.B. Fuller EV Seal 901 BCF - Ev Seal 901 Bcf'S Foam Core Formation Structure

Packaging & Availability

Regional Availability
  • Africa
  • Asia Pacific (Excluding Russia)
  • Europe (Excluding Russia)
  • India
  • Latin America
  • Middle East
  • North America

Storage & Handling

Shelf Life
12 Months
Storage and Shelf Life
  • Store material in original unopened container below 32°C (90°F).
  • Shelf life is 1 year minimum when stored as recommended.