APOC 581 Silicone Roof Patch (0.9 gal)

APOC 581 is a 100% silicone roof patch and waterproof sealant designed for durable, long-lasting repairs. It applies by brush or trowel across a wide temperature range and resists ponding water, making it ideal for roofs, flashing, seams, and penetrations.

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Key Features:

• 100% Silicone Formulation: Delivers superior waterproofing and long-term flexibility
• Wide Application Temps: Apply between 35–110°F for reliable year-round repairs
• Ponding Water Resistance: Stands up to standing water to protect vulnerable areas
• ASTM C920 Performance: Meets rigorous standards for sealants and joint fillers
• Easy Application: Brush or trowel on; bright white finish integrates with silicone roof coatings

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Specifications Table:

Specification	Details
Series Name	581
Container Size	0.9 gallon (3.4 L)
Color/Finish	White
Composition	100% Silicone
Drying Time	360 minutes (approx.)
VOC Level	50 g/L
Waterproofer	Yes
Elastomeric	No
Fibered	No
Cement	No
Application Temperature Range	35–110°F
Coverage	Up to 12.5 sq ft at 1/8 in thickness
For Use With	Silicone roof coatings
Standards/Compliance	Meets ASTM C920
Warranty	Limited lifetime
CA Residents: Prop 65 Warning(s)	Yes
UNSPSC	30151500
Application Methods	Brush or trowel
Typical Uses	Roofs, flashing, curbs, penetrations, HVAC, seams

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Frequently Asked Questions (FAQ):

Q: What surfaces or systems is this compatible with?
A: Use with silicone roof coatings; not recommended for acrylic, aluminum, or asphalt coatings.

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Q: How is it applied?
A: Apply by brush or trowel; coat damaged area, embed reinforcing fabric while wet if needed, and apply a second layer.

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Q: What is the coverage?
A: Up to approximately 12.5 sq ft at 1/8 in thickness per 0.9-gallon can; coverage varies by surface texture.

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Q: What is the dry time?
A: Approximately 360 minutes to dry, depending on conditions.

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Q: Does it have a warranty?
A: Yes, it carries a limited lifetime warranty.

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A Crisp, Architectural Seal in Brilliant White

This silicone patch brings a clean, luminous finish that quietly elevates utilitarian roof details. I love its bright white hue and smooth brush-on texture—beautifully minimal yet fiercely durable. Use it to refine seams and penetrations, then top with a silicone coating for a cohesive, modern roofscape. It’s a discreet luxury: performance-first protection that keeps the whole envelope looking pristine.

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Seal leaks for good—choose APOC 581 today for a durable, silicone-strong roof repair.