Which Selleys contact adhesive do you need, and how do you choose?

Contact adhesives are durable and versatile, and they are at their best bonding large, flat surfaces together — though they can also be used for smaller patch and repair jobs. Most work on a variety of materials such as timber, leather, canvas, rubber and cork, while a few are also suitable for bonding metals, glass and certain plastics.

The property that defines them is that the initial bond is almost instant, which makes them suitable on vertical as well as horizontal surfaces, with full strength achieved once the adhesive has cured. The other defining property is that contact adhesives do not become rigid when dry, so they work well on flexible materials — the reason they suit upholstery, canvas and leather where a hard-setting glue would crack at the bond line.

How to choose

Interior or exterior, and how hot

Solvent-based contact adhesives can be used on interior and exterior surfaces, though heat and water resistance does differ between products. This is the distinction that matters most:

• For high heat resistance, Selleys names Fix&Go Kwik Grip, Kwik Grip Horizontal and Kwik Grip Vertical.
• Selleys Kwik Grip Waterbased is also heat resistant up to 130°C, but it is only suitable for interior use. The heat rating and the exterior rating are separate things: a product can survive the temperature and still not survive the weather.
• Kwik Grip High Temp Spray is a high grade spray adhesive with heat resistance to 90 degrees and salt water resistance, for extreme heat, exterior and marine environments.

Horizontal or vertical

Two products in the range are named for the orientation they are formulated for. Kwik Grip Horizontal is for high-strength bonds on horizontal surfaces such as laminates and timber — the classic benchtop laminating job. Kwik Grip Vertical Gel uses a non-drip formula so it stays where you spread it on a vertical face, which is what makes a clean finish possible on a wall or cabinet side.

Spread, spray, or invisible

Kwik Grip Spray gives an instant, strong bond and is ideal for bonding large surfaces, drying fast and suiting a variety of materials. Selleys singles out Kwik Grip Spray as ideal for craft projects and car upholstery repairs, which is exactly the case where the material is flexible and you cannot get a spreader into it.

Kwik Grip Crystal Clear is the choice where the bond line will be visible, giving a professional, invisible finish and bonding glass, plastic and more.

The products in this range

• Kwik Grip Horizontal — high-strength bond for horizontal surfaces, for laminates, timber and more.
• Kwik Grip Vertical Gel — non-drip formula for bonding vertical surfaces without mess.
• Kwik Grip Spray — fast-drying spray adhesive giving an instant, strong bond, ideal for large surfaces and a variety of materials.
• Kwik Grip High Temp Spray — high grade spray adhesive with heat resistance to 90 degrees and salt water resistance for extreme heat, exterior and marine environments.
• Kwik Grip Crystal Clear — for a professional, invisible finish when bonding glass, plastic and more.

The safety divide in this category — a uniformly high baseline, with one product above it

This is not a category where a cautious choice is available. Contact adhesives work by solvent evaporation: both films have to lose their solvent before they will weld to each other, so the step that makes the bond is the step that puts vapour in the room. Every Kwik Grip product with a published classification carries the signal word Danger, and every one of them is classified for narcotic effects — Category 3, meaning the vapour acts on the central nervous system. Feeling drowsy or light-headed while spreading a panel is not tiredness; it is the classified effect happening.

On top of that shared baseline there are three real differences.

Group	Products	What is different
Cumulative organ hazard	Kwik Grip Crystal Clear	The only one classified for specific target organ toxicity, repeated exposure — Category 2: may cause damage to organs through prolonged or repeated exposure. Cyclohexane 30–60%
Pressurised and extremely flammable	Kwik Grip Spray, Kwik Grip High Temp Spray	Aerosols Category 1: H222 extremely flammable aerosol and H229 pressurised container, may burst if heated. High Temp Spray is Dangerous Goods Class 2.1, flammable gas. Do not pierce or burn, even when empty; keep below 50 °C
Highly flammable liquids	Kwik Grip Horizontal, Crystal Clear	H225 highly flammable liquid and vapour — the vapour above an open tin is ignitable at ordinary room temperature, with no heating required
Not published	Kwik Grip Vertical Gel	No hazard classification is published on its product page. Treat it as a solvent contact adhesive and read the safety data sheet before use — absence of a published classification is not a finding that none applies

The repeated-exposure classification on Crystal Clear is the one worth acting on, because of who chooses that product and why. Crystal Clear is picked for appearance — an invisible bond line — which makes it the natural choice for a repeated craft or production process where every joint shows. That is precisely the usage pattern its extra classification is about. For one job in a ventilated space the ordinary precautions cover it; for daily use, ventilation and respiratory protection become a standing control rather than a per-job decision, because the harm this classification describes accumulates.

One point applies across the category: the vapour load scales with the coated area, and coated area here is large by definition. A laminated benchtop or a sprayed headlining puts far more solvent into a room than a cartridge product ever does, and that vapour is heavier than air — it pools in hollows and runs along the floor to find an ignition source. Ventilate before you start, not when you notice the smell.

Comparing the range on heat, timing and coverage

Heat resistance and the window between spreading and pressing are what decide a contact adhesive job. Horizontal and Spray publish their figures in the body of their product pages rather than in a specification table, and Crystal Clear publishes no figures at all; everything below is a published figure, and where nothing is published the cell says so.

Product	Heat resistance	Time surfaces kept apart	Full bond
Kwik Grip Horizontal	130 °C	Approx. 20 minutes, and no more than 40	24 hours
Kwik Grip Vertical Gel	130 °C	Open time 20 to 40 minutes	24 hours
Kwik Grip High Temp Spray	90 °C	Up to 5 minutes, or until touch dry — no more than 10	24 hours
Kwik Grip Spray	70 °C	5 to 30 minutes	See product page
Kwik Grip Crystal Clear	Described as heat resistant; no figure published	See product page	See product page

The product with "High Temp" in its name is not the most heat-resistant product in the category. Kwik Grip High Temp Spray is rated to 90 °C. Kwik Grip Horizontal and Kwik Grip Vertical Gel are both rated to 130 °C — forty degrees higher. The name is a comparison within the aerosols, where the alternative is 70 °C, not a claim against the range. What High Temp Spray genuinely adds over the standard spray is salt water resistance and a rating for exterior and marine environments. If heat alone is the problem — a splashback beside a cooktop, a panel in a hot roof space, anything behind an appliance — the spread products are the higher-rated choice, and the spray is what you use when the shape of the work rules out a spreader.

The open-time windows differ by a factor of eight, and both ends of each window are failure modes. The aerosols want the parts together within five to thirty minutes; High Temp Spray wants them together inside ten. The spread products want you to wait about twenty minutes and not exceed forty. Press too early and the films still hold solvent and will not grab; leave it too long and they have dried past the point where they will weld. Carrying one product's habit over to another is the usual reason a contact bond feels dead the moment the two faces meet, and it is a mistake that cannot be corrected — the bond is instant, so there is no sliding a misplaced panel into position. On anything large, separate the faces with spacers, align the piece, then withdraw the spacers progressively and press as you go.

Work out the quantity from the coverage figure before you buy the small pack. Vertical Gel publishes 0.25 m² per 40 g of one surface, and a contact adhesive needs both faces coated. A 40 g tube therefore covers roughly 0.125 m² of finished joint — about a 35 cm square — and the 3.2 kg can works out at around 10 m² of finished joint, before any allowance for a porous substrate drinking the first coat. Porosity is the variable Selleys flags against that figure, so a raw particleboard edge or an open-grained timber will take noticeably more than a sealed laminate. Running out halfway through a panel is not recoverable in the way it would be with an ordinary glue, because the first coat is already drying to its window.

Common questions about Selleys contact adhesives

What is a contact adhesive actually for?

Bonding large, flat surfaces together — although it also handles smaller patch and repair jobs. The initial bond is almost instant, and full strength arrives once the adhesive has cured.

Will it work on flexible materials?

Yes. Contact adhesives do not become rigid when dry, which is why they work well on flexible materials. Most work on timber, leather, canvas, rubber and cork.

Can I use a contact adhesive on a vertical surface?

Yes. The almost instant initial bond makes contact adhesives suitable on both vertical and horizontal surfaces. For vertical work specifically, Kwik Grip Vertical Gel has a non-drip formula.

Which one is heat resistant?

For high heat resistance Selleys names Fix&Go Kwik Grip, Kwik Grip Horizontal and Kwik Grip Vertical. Kwik Grip Waterbased is heat resistant up to 130°C. Kwik Grip High Temp Spray is rated to 90 degrees with salt water resistance.

Can I use these outside?

Solvent-based contact adhesives can be used on interior and exterior surfaces, but heat and water resistance differs between products. Kwik Grip Waterbased is interior only, despite its 130°C heat resistance.

Which one should I use on car upholstery?

Kwik Grip Spray is the product Selleys names as ideal for craft projects and car upholstery repairs.

What if the glue line will be visible?

Kwik Grip Crystal Clear is formulated for a professional, invisible finish.

Will a contact adhesive bond metal, glass or plastic?

Some will — a few products in the range are suitable for bonding metals, glass and certain plastics, and Kwik Grip Crystal Clear names glass and plastic specifically. Check the individual product page for the materials it lists rather than assuming the whole category behaves the same way.