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🔧 Seal the deal with OB1 – where durability meets versatility!
OB1 White Multi-Surface Construction Sealant & Adhesive is a hybrid polymer paste designed for professional-grade bonding and sealing across diverse materials including metal, glass, wood, and plastic. With over 20 years of trusted performance, it withstands extreme temperatures from -40°C to +120°C and is uniquely capable of underwater application without draining. Its odourless, solvent-free formula is ISEGA approved for food-safe environments, making it ideal for both industrial and residential projects requiring durable, eco-conscious sealing solutions.







| ASIN | B08DD2XCSG |
| Best Sellers Rank | 735 in DIY & Tools ( See Top 100 in DIY & Tools ) 18 in Sealers |
| Brand | OB1 |
| Colour | White |
| Compatible Material | Aluminium, Fibreglass, Glass, Plastic |
| Container Type | Tube |
| Customer Reviews | 4.5 out of 5 stars 1,163 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Global Trade Identification Number | 05032822004350 |
| Included Components | OB1 SEAL & ADH WHITE 290ML |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | OB1 SEAL & ADH WHITE 290ML |
| Item Volume | 290 Millilitres |
| Item Weight | 0.51 Kilograms |
| Item form | Paste |
| Manufacturer | Siroflex Lte |
| Manufacturer Part Number | 044933 |
| Material | Hybrid Polymer |
| Model Number | OB1SCS290W |
| Number of Pieces | 1 |
| Other Special Features of the Product | Water Resistant |
| Special feature | Water Resistant |
| Specific Uses For Product | General Construction, Underwater Bonding, Food-Safe Applications |
| Specific uses for product | General Construction, Underwater Bonding, Food-Safe Applications |
| Unit Count | 512.0 gram |
| Viscosity Level | Low |
| Water Resistance Level | Water Resistant |
A**R
Gloop in a tube.
I think this is as good as CT1 for less money. Time will tell. Used for sealing around a window and glueing some rubber roof. Great for cracks and flaps.
D**Y
This is excellent for many applications
OB1 can't beat it. Used for running between porcelain tiles and aco drains. Did the job perfectly. Sticks like it should!!
J**D
Easy to use
Easy to use and did the job, time will tell if it lasts ten years
A**E
Oak filler
Good product.... Color is perfect
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.
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.
A**R
Strong As An Ox
Brill product.Very strong bonding strength indeed.Highly recommend to all.
A**T
So stong for some jobs screw are not needed
Being useing this for DIY job and i dose the job just not as easy to use as selant but arpart from that no prolems Touch dry in 1 hour but let set for 24 hours.
C**N
NO FUNCIONA
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
Ok
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
Best on the market
The best sealant / adhesive on the market, love it. It will seal of fix most things
P**.
Very strong but stays just slightly pliable where a little flexibility is appreciated.
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
2 weeks ago
2 months ago