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United Asphalt Armour Proof AP-2100 Modified Liquid Rubber Mastic, White, 3 gal Pail
Regular price $144.00Orders start at $399 — combine any items to reach the minimum. Learn more
United Asphalt Armour Proof AP-2100 Modified Liquid Rubber Mastic, White, 3 gal Pail
Armour Proof AP-2100 is a single-component modified liquid rubber mastic in a white 3-gallon pail. It forms a waterproof, weather-resistant membrane with excellent permeability and UV protection, and its elongation and tensile strength accommodate expansion and contraction. Use at seams, fasteners, gutters, vent pipes, curbs and expansion joints, paired with AP-6100 Modified Liquid Rubber.
Key Features:
- Waterproof membrane: Provides a waterproof, weather-resistant membrane with excellent permeability and UV protection.
- Single component: Single-component mastic — no mixing required.
- Moves with the roof: Good elongation and tensile strength resist lateral movement and allow expansion and contraction.
- Many applications: Use at seams, fasteners, gutters, vent pipe penetrations, curbs and expansion joints.
- System partner: Designed to be used as part of a system with Armour Proof AP-6100 Modified Liquid Rubber.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | United Asphalt |
| Sell unit | 1 pail, 3 gal |
| Product line | Armour Proof AP-2100 |
| Available colors | White |
| Available sizes | 3 gal pail |
| Material | Modified liquid rubber mastic |
| Color / finish | White |
| Dimensions | 3 gal pail |
| Intended use | Seams, fasteners, gutters, vent pipe penetrations, curbs and expansion joints |
Coverage & How Much You Need:
Coverage per 3-gallon pail is not stated in the sources; mastic usage varies widely with application thickness and detail length, so plan by linear feet of seams and number of penetrations.
Fit and Compatibility:
Intended for use as part of a system with Armour Proof AP-6100 Modified Liquid Rubber from United Asphalt. Suitable for metal seams, gutters, vent penetrations, curbs and expansion joints as described by the manufacturer.
Frequently Asked Questions (FAQ):
Q: What is included with this order?
A: One 3-gallon pail of white AP-2100 Modified Liquid Rubber Mastic.
Q: Where can this mastic be used?
A: The manufacturer lists seams, fasteners, gutters, vent pipe penetrations, curbs and expansion joints.
Q: Does it need mixing?
A: No — AP-2100 is a single-component mastic, ready to apply.
Q: What should it be paired with?
A: Use it as part of a system with Armour Proof AP-6100 Modified Liquid Rubber.
Q: Will it handle roof movement?
A: Yes — it offers good elongation and tensile strength to accommodate expansion and contraction.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Mastics like AP-2100 are the workhorse for detail work in liquid-applied systems — trowel or brush it into seams, fastener heads and penetrations before general coating. Apply at the thickness needed to fully encapsulate the detail, and pair with AP-6100 for the field membrane. In white, it also helps reflect UV where the mastic remains exposed.
Wear gloves and eye protection and follow the safety data sheet; apply only within the temperature range printed on the product literature.
Order Armour Proof AP-2100 white mastic in a 3-gallon pail for waterproof detail sealing.
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