The Useful Co.
RoofSeal PU Gun Grade Polyurethane Sealant
RoofSeal PU Gun Grade Polyurethane Sealant
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WHEN THE SEAL CRACKS, THE PROBLEM COMES BACK.
→ Moving joints
→ Weather exposure
→ Cracks reopening
→ Temporary fixes that don’t hold
RoofSeal PU is a strong, flexible polyurethane sealant made for demanding construction and sealing jobs.

STRONG BOND. FLEXIBLE SEAL.
→ High bond strength
→ Flexible after curing
→ Weather & UV resistant
→ Indoor + outdoor use
→ Paintable where suitable

MADE FOR SERIOUS SEALING JOBS.
Use it for:
→ Construction & expansion joints
→ Doors & windows
→ Façades & cladding
→ Floor & pavement joints
→ Precast panels & stone pointing

TECHNICAL DETAILS
600 ml · Grey · Tack-free ~50 min · Cure ~3.5 mm/24 hrs · 50 Shore A
Service temperature: -30°C to +70°C
Made in India
SEAL IT ONCE. SEAL IT PROPERLY.
RoofSeal PU Sealant
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very effective
Very good product for crack filling
It's very good I am using my gutter joint
Best in class all types of wall crack, wooden furniture gap, tile, aluminium windows gap filler.Very easy to use.
Good product
- 5 stars: 6 (60%)
- 4 stars: 3 (30%)
- 3 stars: 1 (10%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
This sealant is very useful if applied correctly in the right places. For example, when you fill cracks with cement, it often chips or cracks again over time. In such cases, this sealant works better because it is flexible and water-resistant. However, you must clean the cracks thoroughly before applying, as even a little dust can affect the bond. I tested it on a stain, and it proved to be flexible as described.
very effective
Very good product for crack filling
It's very good I am using my gutter joint
Best in class all types of wall crack, wooden furniture gap, tile, aluminium windows gap filler.Very easy to use.
Good product
Good product
I recently used the Sika flex 127 multipurpose polyurethane sealant and adhesive, and I am really impressed with its performance. I even made a beautiful DIY candle holder using this product, and the finish came out great.It’s not just for DIY projects — it also works perfectly on tile gaps in the bathroom sink, seals the gaps around windows and doors, and even covers up small wall cracks effortlessly
Packing is not good one time use toh bad sari tube bear ho gyi anyway quilty is good
Cream/Paste is good but applying it is bothering. The functionality is poor and not well manufactured. Could have done better.

FAQs
What surfaces can RoofSeal PU be used on?
It is suitable for many construction applications including concrete, stone, metal, window frames, joints and cladding.
How long does it take to cure?
It becomes tack-free in about 50 minutes and cures at roughly 3.5 mm per 24 hours, depending on conditions.
Can it be painted after curing?
Yes, it can be painted where suitable after it has properly cured.
Do I need a sealant gun?
Yes. This is a 600 ml gun-grade sealant, so a compatible sealant gun is required.