TEC7 A-Tec Adhesive Sealant

€18,95

incl. VAT 25.5%

MS-polymer30% better adhesion–10°C curingNo isocyanatesEC1+ EMICODEM1 certifiedUV resistant

TEC7 A-Tec MS-polymer adhesive sealant — outstanding adhesion to virtually all materials, including wet surfaces. The 2024 reformulation: 30% better grip, 2–4× faster cure, cures down to –10°C.

Bonds AND seals in one cartridge — wet or dry substrates
4 colours (Black, White, Grey, Anthracite) — pick to match the visible surface
No isocyanates, no solvents, no phthalates — safe in cabin interiors
EC1+ EMICODE, M1, Eurofins Gold certified for indoor air

310 ml cartridge — use in TEC7 Multigun for steady beads. Per-colour use cases and full cure/strength data in the tech specs.

Colour

Select model4 options

Black

€18,95

White

€18,95

Grey

€18,95

Anthracite

€18,95

In stock

95 % of orders ship within 4 business days

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Use cases

Hull-to-deck joint resealing

Annual hull-to-deck reseal: remove old sealant, prep, apply A-Tec White or Grey, tool with soapy spatula. The MS-polymer cures fast (3h porous), elastic (350% elongation), and stays watertight for years — even when GRP flexes under load.

Deck hardware bedding

Cleats, stanchions, hatches, hand-rails: bed in A-Tec for permanent waterproofing. Unlike silicone, A-Tec doesn't release a thin oily film that stops paint sticking. Removable later with TEC7 Cleaner.

Structural bonding without screws

Bond wood-to-GRP, metal-to-GRP, or trim panels without visible fasteners. 280 N/cm² tensile strength after 7 days. Apply in small dots (~50 mm spacing) for instant tack, then full strength after 24h.

Specifications

ColourWhite

Typical useWhite GRP hull/deck joints, white console seams, hand-rail bedding

Cure & strengthSame as all colours — see specs

BaseMS-polymer

Application temp.–10°C to +40°C

Service temp.–40°C to +90°C

Skin formation8 min

Functional strength3h (porous) / 6h (non-porous)

Tensile strength280 N/cm² (7d) / 380 N/cm² (3mo)

Elongation at break350%

Shore A60

Volume shrinkage<1%

CertificationsEC1+ EMICODE, M1, Eurofins Gold, Indoor Air A+, ISEGA

Country of originBelgium

Installation guide

Clean and prep the surface

Remove old sealant, dust, grease, salt. A-Tec adheres to clean PE/PP and wet surfaces, but a wiped & dried bond is always stronger. For galvanised/painted metal, lightly scuff first.

Cut the nozzle to bead width

Cut the nozzle tip at 45° for the bead size you need. Smaller bead for fine seams (5–6 mm), larger for hull-to-deck or fendering work. Cut just before applying — don't pre-cut and store.

Load into a cartridge gun

A-Tec is a 310 ml standard cartridge. Use a quality cartridge gun like the TEC7 Multigun for steady, controllable beads. Cheap guns leak around the plunger and burn your thumb.

Apply the bead

Maintain steady pressure on the trigger and a constant gun angle (around 45°). Apply in one continuous bead — restarts create air pockets. For structural bonding, apply small dots ~50 mm apart on one face.

Tool the bead smooth

Within 8 minutes (skin-formation time): tool the bead with a spatula or finger dipped in soapy water. Don't use solvents — they degrade the surface and trap residue. Smooth, even pressure makes a watertight seal.

Allow to cure before stress

Functional strength: 3 hours on porous surfaces, 6 hours on non-porous (GRP, metal, plastic). Full cure ~24 hours. Don't load the joint mechanically before functional strength is reached. Warmer ambient = faster cure.

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