Bitustatic Compound for Exterior Dampproofing and Repairs
BULLDOG® Bitustatic Compound #44AF is a trowel-grade asphalt compound made with petroleum solvent, mineral fillers, and other ingredients. It forms a tough film for exterior protection. Contractors can use this bitustatic compound on exterior walls, flashings, parapets, gutters, and slate tile work.
Built for Exterior Walls, Flashings, and Gutters
This product supports several exterior repair and dampproofing tasks. It can dampproof exterior walls, flashings, and parapets. Crews can also use it to reline metal or wood gutters or embed slate tiles. The Product Data Sheet limits BULLDOG® Bitustatic Compound to exterior use only.
Recommended Uses
- Dampproofing exterior walls, flashings, and parapets
- Relining metal or wood gutters
- Embedding slate tiles
- Exterior applications only
Bitustatic Compound Application Guidance
First, remove loose paint, loose cement, and other weak material with a wire brush. Confirm that the surface is clean and dry. Then use a trowel to apply the compound at approximately 1/8-inch (3.2 mm) thickness. One gallon covers approximately 13 square feet (1.2 square meters).
The Data Sheet recommends priming the surface with BULLDOG® Q.D. Primer or BULLDOG® Asphalt Primer. Contractors considering an asphalt primer can review BULLDOG® #82 Asphalt Primer – Spec Grade and confirm that it fits the project requirements. For unusual water conditions or vibration-related cracking, embed BULLDOG® Asphalt Saturated Cotton Fabric in the first coat. Afterward, apply a second trowel coat over the fabric.
Drying, Service Range, and Cleanup
- Drying: Touch-dry in a few hours; approximately 24 hours for full cure
- Aluminum coating: Apply after a minimum of 30 days
- Service temperature: -30°F to +150°F
- Cleanup: Mineral spirits or BULLDOG® #99 Asphalt Remover
Cover air intakes before application and while the material cures. The Data Sheet also reports behavior testing under ASTM D4586 asphalt roof cement methods.
Why Contractors Choose BULLDOG
BULLDOG® Bitustatic Compound #44AF gives crews one trowel-applied material for several exterior maintenance tasks. Its listed applications range from dampproofing walls and parapets to relining gutters and embedding slate tiles.
Product Documents
Review the Product Data Sheet for application details, and review the Safety Data Sheet before handling, application, storage, or disposal.
