Del-Val 211 Flashing Cement - 5 Gallon Pail

A Multi-Tool of a Mastic

Del-Val 229

Gray Modified Rubber Sealant

Great Adhesion to Single-Ply with Excellent Elongation! Gray Blends Nicely on Metal!


Del-Val 229 Modified Rubber Sealant (Gray) is a single-component, thermoplastic rubber mastic formulated for protecting seams, penetrations and other detail areas over metal, wood, EPDM, APP, TPO and Hypalon. Del-Val 229 Modified Rubber Sealant (Gray) provides a waterproof, durable, seamless flexible weather resistant membrane with excellent elongation, tensile strength and UV protection.

Great for Repairing EPDM, TPO, Skylight & Penetration Perimeters, Seams & Other Roof Equipment. Best Day’s End Dry-in / Night Seal!

Where to Use Del-Val 229 Modified Rubber Sealant (Gray)

Quick Application Guide

Dry to the Touch

1–6 HRS

Weather Dependent

Cure Time

48 HRS

Weather Dependent

Coverage Rate

~1 GAL

Per 80 Linear Feet


Apply Del-Val 229 by brush at a rate of 80 linear feet per gallon, according to the substrate and condition. Dry time is 1–6 hours. Cure time is 48 hours.


Surface must be pressure washed clean, free of all loose particles, dirt debris and other contaminants that could inhibit adhesion. Wire brushing may be recommended. The surface must be completely dry to prevent blistering of the product. Must mechanically mix coating before using.


Apply to a clean dry surface using a brush, roller or squeegee. For best results weather should be clear with no threat of rain for 48 hours.


Single-Ply & Metal Surfaces: Apply at the rate of approximately 1 gallon per 80 linear feet.

Cleanup Del-Val 229 Modified Rubber Sealant

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

Make Your Repairs, Then Coat Your Roof:

Del-Val 315-G Thermoplastic Roof Coating in Gray in 5 Gallon Pail

Del-Val 315-G

Thermoplastic Roof Coating Gray

Depend on Del-Val Logo

Product Information

Sizes Available

1 Gallon Capacity Pail
3 Gallon Capacity Pail

Tools Needed

Brush Tool Graphic
Spackle Knife Tool Graphic
Trowel Tool Graphic


Looking for a Different Color? Try One of These.

Be sure to indicate which color you will need for your project when ordering.
Del-Val 230 White Modified Rubber Sealant in 3 Gallon Pail

Del-Val 230

White Modified Rubber Sealant

Del-Val 231 Black Modified Rubber Sealant in 3 Gallon Pail

Del-Val 231

Black Modified Rubber Sealant

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
Have Additional Questions About Del-Val 229 White Modified Rubber Sealant?
Del-Val 120 Fibered Emulsion Coating in 5 Gallon Bucket
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