Skip to content
GAF M-Thane Pourable Sealant Kit, Self-Leveling Elastomeric, 2 gal, White
Regular price $146.00Orders start at $399 — combine any items to reach the minimum. Learn more
GAF M-Thane Pourable Sealant Kit, Self-Leveling Elastomeric, 2 gal, White
GAF M-Thane Pourable Sealant is a moisture-cure, self-leveling elastomeric sealant for penetration seals on low-slope roofs. This kit supplies 2 gallons of white sealant in a single kit unit. It applies in damp, cold or dry climates down to 30°F and cures without shrinking or outgassing.
Key Features:
- Self-leveling finish: Self-leveling formula provides a smooth, professional finished look around penetrations.
- Cold-weather application: Can be applied at temperatures as low as 30°F (-1°C).
- Low VOC, 100% solids: Less than 25 g/L VOC and 100% solids, solvent-free with no isocyanates.
- No shrink or bubbles: Will not shrink upon curing and does not outgas or bubble on damp surfaces like urethane sealants can.
- High movement capacity: Low durometer elastomeric formulation accommodates greater movement in penetration seals than typical urethane sealants.
- Paintable quickly: 20-minute skin-over time; paintable within 24 hours.
- Strong adhesion: Has excellent adhesion to most construction materials.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Sell unit | 1 kit, 2 gal |
| Product line | GAF M-Thane Pourable Sealant |
| Available colors | White |
| Available sizes | 2 gal kit |
| Material | Moisture-cure elastomeric sealant, solvent-free, no isocyanates |
| Finish / texture | Self-leveling |
| Dimensions | 2 gal kit |
| Intended use | Penetration seals on roofing assemblies |
| Application temperature | As low as 30°F (-1°C) |
| Skin-over time | 20 minutes |
| Paintable | Within 24 hours |
| VOC | Less than 25 g/L, 100% solids |
Fit and Compatibility:
Formed for penetration seals in commercial roofing assemblies and adheres to most construction materials. For use within the membrane system specified by the roof designer; follow GAF application instructions for compatible substrates.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One kit containing 2 gallons of white M-Thane pourable sealant.
Q: Do I need to mix it?
A: The listed product requires no mixing; it is a moisture-cure, self-leveling sealant.
Q: How cold is too cold to apply?
A: It can be applied at temperatures as low as 30°F (-1°C), making it suitable for cold, damp and dry climates.
Q: When can I paint over it?
A: It skins over in about 20 minutes and can be painted within 24 hours.
Q: Will it bubble on a damp surface?
A: No; it will not shrink and does not outgas or bubble on damp surfaces as urethane sealants can.
Q: What can I use it on?
A: It has excellent adhesion to most construction materials and is intended for penetration seals.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Pourable sealant is the right choice for irregular penetrations and pitch pockets where boots or flashing tape can't conform. M-Thane's low durometer is the key benefit: it keeps moving with the penetration instead of splitting the way stiffer urethanes do. For best results, blow out loose debris and standing water from the opening before pouring, and detail corners so the self-leveling compound can flow into the gap.
Wear gloves and eye protection when handling sealant, and follow the product's application instructions and jobsite fall-protection requirements.
Add the GAF M-Thane Pourable Sealant Kit to your next penetration-seal detail.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
