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Stelmax 1961 Gap Filler Reviews

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Read AB Building Products Reviews

Stelmax 1961 Gap Filler & Sealant – High‑Strength PVC Filler for Larger Gaps (300ml)
Stelmax 1961 Gap Filler & Sealant (300ml) is a professional‑grade, high‑solid PVC filler designed for creating exceptionally strong, maintenance‑free joints on rigid and plasticised PVC. Formulated with PVC resin, pigments and plasticisers, it delivers outstanding adhesion and is widely trusted across the window and building industries for frame installation, sealing and attachment work.
Thanks to its high solid content, Stelmax 1961 is ideal for filling larger gaps where a durable, long‑lasting finish is essential. Once cured, it forms a tough, water‑resistant, UV‑stable seal that closely resembles high‑quality rigid PVC. It also adheres effectively to many porous substrates, making it a versatile choice for both installation and repair tasks.
Available in White and Mahogany, with RAL colour matching available on request, Stelmax 1961 offers a clean, colour‑matched finish for a wide range of PVC profiles and trims. The 300ml tube fits any standard sealant gun for quick, easy application.
Features
High‑solid PVC resin formula for filling larger gaps
Creates strong, maintenance‑free joints on rigid and plasticised PVC
Excellent adhesion to PVC and many porous substrates
Weather‑resistant, UV‑stable and chemical‑resistant once cured
Rapid skin formation protects against dust and debris
300ml tube fits any standard sealant gun
Available in White and Mahogany
RAL colour matching available on request
Safe, compliant courier‑only delivery
Benefits
Achieve durable, long‑lasting seals with minimal effort
Ideal for window frame installation, sealing and attachment work
Fills larger gaps more effectively than Stelmax 1965
Ensures a clean, colour‑matched finish on PVC profiles
Reduces rework thanks to strong adhesion and fast skinning
Suitable for both trade professionals and DIY users
Specifications
Product Type: PVC gap filler & sealant
Size: 300ml
Colours Available: White, Mahogany
Material Compatibility: Rigid PVC, plasticised PVC, porous substrates
Application: Large gap filling, window frames, trims, joints
Delivery: Courier only (flammable product)
Colour Matching: RAL options available on request

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Phone:

+44 1264 359 984

Email:

jamie@abbuildingproducts.co.uk

Wayne Ingram
Verified Reviewer
I use this product all the time veryhappy with it
Helpful Report
Posted 4 years ago
Great product and supplier
Helpful Report
Posted 4 years ago
excelent product
Helpful Report
Posted 4 years ago
Great product
Helpful Report
Posted 4 years ago
Could not buy the Stelmax 1961 adhesive gap filler locally, this was a product recommended by the window manufacturer's - easy to apply and good bonding between UPVC to UPVC and UPVC to brick - used to fill and bond small frame cracks and to bond upvc to brick wall. It does not act like silicone and skins very quickly which makes smoothing difficult but once you realise how it reacts a very neat and well bonded joint is easily achieved - top product
Helpful Report
Posted 4 years ago
John Hemphill
Verified Reviewer
Excellent service, highly recommend.
Helpful Report
Posted 4 years ago
Paul Lissaman
Verified Reviewer
Good product
Helpful Report
Posted 5 years ago
Good value
Helpful Report
Posted 6 years ago