

🔧 Seal the deal with OB1 – where durability meets versatility!
OB1 Clear Multi-Surface Construction Sealant & Adhesive is a hybrid polymer formula trusted for over 20 years, delivering exceptional chemical, water, and weather resistance. It bonds and seals a wide range of materials, works in extreme temperatures (-40°C to +120°C), and is safe for underwater and food-contact applications. Odourless and eco-friendly, OB1 is the go-to sealant for professional-grade construction, marine, and domestic projects.









| ASIN | B08DD3LHFB |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 329 in DIY & Tools ( See Top 100 in DIY & Tools ) 18 in Sealers |
| Colour | Clear |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,032) |
| Date First Available | 21 July 2020 |
| Included Components | OB1 SEAL & ADH CLEAR 290ML |
| Item Package Quantity | 1 |
| Item Weight | 360 g |
| Item model number | OB1SCS290C |
| Manufacturer | Siroflex Lte |
| Material | Hybrid Polymer |
| Number of Pieces | 1 |
| Part Number | OB1SCS290C |
| Power Source | ac |
| Product Dimensions | 22.8 x 6.8 x 4.8 cm; 360 g |
| Size | Cartridge |
| Special Features | Weather Resistant |
| Style | Industrial |
| Usage | industrial applications, construction, swimming pool maintenance, marine construction |
B**Z
Very good product
Quality stuff for any job , easy to apply and smooth off. Sets perfectly , no complaints
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**J
Seems good quality
Good product but very thick to gun.
H**!
Brilliant
Brilliant sealant. Easy to apply. Colour is excellent. Great value for money
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.
W**Y
Does the job well. Very good product.
Great product. Easy to use, does the job well.
B**N
One tube manybuses
All in one sealant, filler, mastic. Flows smoothly as a filler, mastic. Acts as a glue as well. Sandstone colour is a light cream beige so blends well
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.
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