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🔧 Seal it once, seal it right — the ultimate hybrid adhesive for pros who settle for nothing less!
OB1 Anthracite Multi-Surface Construction Sealant & Adhesive is a 290ml hybrid polymer paste designed for durable, waterproof bonding and sealing across diverse materials including metal, glass, wood, and plastic. It withstands extreme temperatures (-40°C to +120°C), is safe for underwater use, eco-friendly, odourless, and compatible with most paints. Trusted for over 20 years, it’s the go-to sealant for professional-grade construction and repair.
| ASIN | B08K24NG7Z |
| Best Sellers Rank | 348 in DIY & Tools ( See Top 100 in DIY & Tools ) 14 in Sealers |
| Brand | OB1 |
| Colour | Anthracite |
| Compatible Material | Aluminium, Fibreglass, Glass, Plastic |
| Container Type | Tube |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,119) |
| Global Trade Identification Number | 05032822004473 |
| Included Components | 290ml Cartridge with Nozzle |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | Adhesive and sealant |
| Item Volume | 290 Millilitres |
| Manufacturer | Siroflex Lte |
| Manufacturer Part Number | B1SCS290A |
| Material | Hybrid Polymer |
| Model Number | B1SCS290A |
| Number of Pieces | 1 |
| Other Special Features of the Product | Hybrid Polymer Technology |
| Specific Uses For Product | Construction, Repair |
| Unit Count | 515.0 gram |
| Viscosity Level | Low |
| Water Resistance Level | Waterproof |
B**O
Great quality and great colour
Great quality, perfect dark brown colour. We have dark wood panels on the kitchen ceiling with spotlights. There was a tiny gap between the two of panels which the light was coming through that gap and didn’t look nice so I wanted to fill that gap. This brown sealant was perfect , exact brown colour i was looking for ,went on so smoothly and has no smell. Very happy with my purchase.
A**R
Strong As An Ox
Brill product.Very strong bonding strength indeed.Highly recommend to all.
J**D
Easy to use
Easy to use and did the job, time will tell if it lasts ten years
5**R
OB1 Clear Multi-Surface Construction Sealant & Adhesive
I needed to use it to stop a few water leaks on our metal shed's roof, worked like a charm.
S**Y
Used to fill in gap between laminate flooring and skirting.
This sealant is a quality product. The colour matches the chart and was perfect for gap that needed filling. Shame they don't do it in a smaller tube as only used a very small amount and will probably be hard next time I go to use it.
M**D
OB1 Black Multi-Surface Construction Sealant & Adhesive
I used the "OB1 Black Multi-Surface Construction Sealant & Adhesive" to stick down corner trims and seal the edges of my van lining that I did. The silicon had good adhesion for the trims I was sticking down and it was very workable. It does not set too quick and did not skin over at all so I was able to get a nice finish to it without ridges or the "dragging effect" you sometimes get when silicons start to skin over. This silicon was also pretty odourless. My tube came with a nozzle also.
H**!
Brilliant
Brilliant sealant. Easy to apply. Colour is excellent. Great value for money
K**X
Sticky and took dark for oak
As an adhesive this is great and sticks amazingly well, as a sealant it's very hard to work with as very sticky. FYI colour doesn't go well with a IKEA oak coloured worktop. Value for money I would say good
C**N
ES UNA VERGÜENZA EL VENDEDOR, NO ME FUNCIONO BIEN EL PRODUCTO Y NO QUISO HABERSE CARGO DE LA DEVOLUCIÓN NADA RECOMENDABLE Y LE TENÍAN QUE ECHAR DE AMAZON
Y**Z
Excelente producto, totalmente recomendado. Cumple perfectamente con lo que promete. La calidad es muy buena, llegó rápido y en excelente estado. Estoy muy satisfecho(a) con la compra y sin duda lo volvería a comprar. ¡Vale la pena!
S**N
The best sealant / adhesive on the market, love it. It will seal of fix most things
P**.
High quality product. Professional grade. Strong adhesion properties but can be removed if needed. I used it in the automotive area to bond a metal bracket to glass.
Trustpilot
1 month ago
1 month ago