GacoPatch GP1525-2 is a gray 2 gal flashing-grade silicone roof sealant for targeted roof repairs on compatible commercial and residential roof surfaces. It is for crews sealing cracks, seams, collars, fish mouths, pinholes, and pitch pans where a flexible silicone repair material is specified.

Key Specs

• Model / MPN: GP1525-2
• Brand: Gaco
• Type: Flashing-grade silicone roof patch/sealant
• Container size: 2 gal
• Color: Gray
• Use locations: Surface cracks, control joints, coping joints, gutter seams, membrane pinholes, rain collars, fish mouths, and pitch pans per data sheet
• Substrates: Aged asphalt, aged EPDM, aged TPO/CPA, built-up, cap sheet, composite, concrete, fiberglass, metal, modified bitumen, torchdown, sprayed polyurethane foam, and most existing coatings per data sheet
• Sell unit: Each

Compatibility / Fitment

Use only on manufacturer-approved roof surfaces that are clean and prepared correctly. Do NOT treat it as a full roof coating system, structural repair, or substitute for replacing failed membrane sections when the roof condition requires cut-out and patch work.

FAQs

What repairs is GacoPatch meant for?

The data sheet lists surface cracks, control joints, coping joints, gutter seams, membrane pinholes, rain collars, fish mouths, and pitch pan filler applications.

Which roof surfaces can it bond to?

The product data sheet lists aged asphalt, aged EPDM, aged TPO/CPA, built-up, cap sheet, composite, concrete, fiberglass, metal, modified bitumen, torchdown, sprayed polyurethane foam, and most existing coatings.

Does it need fabric reinforcement?

The candidate record says fabric reinforcement is not normally required, but the product data sheet notes some cracks or fish mouths may require sacrificial tape. Follow the repair detail for the defect.

Can it handle ponding water?

Gaco product literature describes GacoPatch as permanently flexible under permanent ponding water. Confirm roof preparation and repair thickness so the product can perform as designed.

Is this the same as a full roof coating?

No. This is a patch/sealant product for repair details. For full roof restoration, use the manufacturer-specified coating system and coverage rates.

Roof repair work involves fall hazards and chemical handling. Review the current safety data sheet, wear PPE, and follow surface-prep and weather limits.

Product Expert Notes

A strong repair-material listing because pro buyers need exact use cases and substrate compatibility. The FAQ should prevent using a patch pail as a full coating system.