The United Asphalt #230 Del-Val Modified Rubber Sealant Black 3 gal is a caulk & sealant for jobs that require United Asphalt model/MPN 231-3B in the 3G sell unit. Del-Val 230 Modified Rubber Sealant (White) is a single-component, thermoplastic rubber mastic formulated for protecting seams, penetrations and other detail areas over metal, wood, EPDM, APP, TPO and Hypalon.

Key Specs

• Brand: United Asphalt
• Model / MPN: 231-3B
• SKU: UNI231B
• Sell unit: 3G
• Product type: Caulk & Sealant
• Size / color: 3 gal
• Category: Building Materials | Building Materials/Caulk & Sealant
• Coverage / unit: 3 gal per listed unit

Key Features

• Verify the exact model, size, color, sell unit, and system requirements before ordering.

Coverage & How Much You Need

This item is listed as 3 gal per listed unit. Use the project takeoff, manufacturer installation instructions, and expected waste/overlap to confirm the order quantity.

Compatibility / Fitment

Use this item only when the brand, model/MPN, size/color, sell unit, and system type match the project specification. Do not substitute it for a different caulk & sealant, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.

FAQs

What exactly am I ordering?

United Asphalt #230 Del-Val Modified Rubber Sealant Black 3 gal, sold as 3G, with SKU UNI231B and manufacturer model/MPN 231-3B.

What model or part number should I match?

Match model/MPN 231-3B and confirm the brand is United Asphalt. If the job spec lists a different model, size, color, or system family, hold for review.

What unit is the price based on?

This listing is built around the 3G sell unit. Confirm the unit before comparing price, quantity, or coverage.

How do I estimate quantity?

Use 3 gal per listed unit, then add waste or overlap per the manufacturer instructions and the project design.

What should be checked before purchase?

Confirm the model/MPN, sell unit, size/color, jobsite condition, compatible system components, and any manufacturer installation limits before approving the order.

Roofing and exterior-envelope work can involve fall hazards, weather exposure, fumes, adhesives, and system-specific installation requirements; follow the manufacturer instructions, OSHA-safe work practices, and local code or use a qualified contractor.

Product Expert Notes

Choose this item when United Asphalt model/MPN 231-3B, SKU UNI231B, and the 3G sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.