Ultrabond 52 PA Paste
Polyester bonding paste for structural joints in GRP work.
Pack sizes on request
In stock: Windhoek & Walvis Bay
Adhesives for Boatbuilding & Composites in Namibia
Between laminating sessions, a boatyard bonds constantly: bedding hardware, joining components, bonding timber to glass, sealing deck penetrations. Swachem stocks the marine-adjacent bonding set — structural epoxies, polyurethane adhesives, bonding pastes and silicones — beside the resin range, so the yard’s adhesive logic matches its laminate logic.
The local problems this range solves
- Deck hardware bedding failing under working-boat loads
- Timber-to-GRP joints cycling through coastal humidity swings
- Sealant choices that later sabotage repair laminating
- Structural joints improvised with laminating resin
Compliance & documentation
Structural adhesives carry technical data sheets for load-bearing applications; marine-exposure suitability is noted per product.
Local tip
Bed deck hardware in the dry season — bonding onto fog-damp GRP is the invisible error that surfaces as the winter leak list, and Walvis Bay gives you months of guaranteed dry decks to schedule around.
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Powerful two part epoxy glue for metal surfaces. Bonds, fills and repairs most metals; water and chemical resistant.
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Silicone Sealant (Black, Grey, White)
General-purpose silicone sealant for joints, glazing and sealing, in black, grey and white.
Pack sizes on request
In stock: Windhoek & Walvis Bay
Sicomin Epoxy (bonding)
Stocked or sourced on request — ask the counter.
Adhesives for boatbuilding & composites: asked and answered
What bonds deck hardware onto a working boat properly?
Structure plus seal: backing plates and through-bolts carry the load, epoxy or polyurethane adhesive bonds and beds the fitting, and the sealant closes the water path — on a fishing boat that winches and slams, bedding compound alone is a leak with a schedule. Ultrabond paste handles the structural bonding where geometry allows.
Why does laminating resin make a poor structural adhesive?
Gap-filling and toughness: straight polyester is brittle in bond lines and drains from vertical joints, where bonding pastes (Ultrabond 52) carry filler and tougheners engineered for exactly that duty, and epoxies bring adhesion polyester never had. The yard rule: laminate with resin, bond with bonders. The failures that ignore it surface at sea.
What joins timber to GRP so it survives coastal humidity cycling?
Epoxy, with the timber sealed: Sicomin systems bond both substrates excellently, but unsealed timber keeps breathing — swelling against the joint every fog season — so coat the timber faces (epoxy or Woodoc marine grades) before bonding. Polyurethane adhesives offer flexible alternatives on semi-structural trim.
Which sealants create future repair problems, and what should yards use?
Silicone is the repair-saboteur: its residue defeats every future paint and laminate bond, and it migrates beyond where it was applied — keep it to glazing and non-repair zones, and use polyurethane sealants on anything a grinder might one day visit. Yards that enforce that single rule save themselves the mystery fisheyes years later.
Serving Boatbuilding & Composites from our Walvis Bay branch
Swachem Walvis Bay · 4th Street East, Walvis Bay · Tel 064 204 865 · Monday – Friday, 08:00 – 17:00
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Quote adhesives for your boatbuilding & composites operation
Served primarily from Swachem Walvis Bay — 064 204 865. SDS, grades and delivery scheduling included in the quote.