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Below Grade Foundation Coating

Del-Val 401

Fibered Foundation Coating

Prevents Moisture Penetration Through Foundation Walls with Reinforcing Fibers & Meets ASTM Specs


Del-Val 401 Fibered Foundation Coating is a fibered asphalt coating that is used to prevent moisture penetration through foundation wall surfaces. After the product is applied it forms a fiber reinforced shell that helps resist the entrance of moisture through foundation walls.

Prevents moisture penetration through Foundation wall surfaces and strengthened with reinforcing fibers.

Where to Use Del-Val 401 Fibered Foundation Coating

Quick Application Guide

ASTM Compliance
Type I

Coverage Rate

1–1½ GAL

Per Square (Per Coat)


Del-Val 401 Fibered Foundation Coating is used for exterior below-grade masonry and block walls where no hydrostatic pressure is present.


All surfaces must be clean and free of any oil, grease, dirt and all other foreign matter. Must stir coating before using.


Can be applied using: brush or roller. Allow 24 hours drying time before backfilling against the foundation walls. Do not apply over wet/damp or frost covered surfaces.


Apply at the rate of approximately 1 to 1.5 gallons per 100 sq. ft.

Cleanup Del-Val 401 Fibered Foundation Coating

Clean tools with Del-Val Orange Cleaner & Degreaser or mineral spirits, taking necessary precautions when handling combustible liquids.


DO NOT THIN. DO NOT HEAT CONTAINER. DO NOT store in an area where temperatures exceed 120˚F

Code Approvals / Compliance

This product meets or exceeds the requirements of ASTM D-4479 Type I.

Product Information

Sizes Available

5 Gallon Capacity Pail
55 Gallon Capacity Drum

Tools Needed

Brush Tool Graphic
Roller Tool Graphic


Available From These Distributors

Click a logo to find a location close to you.

ABC Supply Co Distributor Logo
Beacon Roofing Supply Distributor Logo
J & L Building Materials Inc. Distributor Logo
LT Ollesheimer and Sons Distributor Logo
New Castle Building Products Distributor Logo
Universal Supply Co Distributor Logo
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