Application Uses

Welcome to WELDBOND

Weldbond®  is a universal adhesive that bonds most anything! It is non-toxic, nonflammable, free of fumes, has low VOCs, is created without animal by-products and environmentally friendly!

It carries the EcoLogo™ seal of approval – certifying that it is created without the use of formaldehyde, toxic metals or excessive VOCs.

» Application Uses

Weldbond®  is a universal bonding adhesive for glass, wood, plaster, metals, slates, tiles, building panels, boards and blocks, cement, bricks, concrete, linoleum, fabrics and more.

Weldbond® appears white in the container but dries to a clear film. It is water resistant but not waterproof, impervious to gasoline, oil, grease, salt, molds and fungi, weak alkalies and weak acids. It is non-staining and will not become brittle with age. It creates a flexible bond.

Weldbond® is concentrated and can be thinned with clean water only. It is ready for use, it does not require heating or mixing.


Ensure all surfaces to which Weldbond® is to be applied are clean and free from ridges that would prevent 100% contact. Remove all loose particles. All oil, grease and dirt must be removed. Steel surfaces should be given a coat of Rust Inhibiting Primer Paint before using Weldbond®. Porous surfaces must be sealed with 1 part Weldbond® to 5 parts water. Porous surfaces can be determined by dropping a small amount of water on surface. If water is readily absorbed, surface is porous. If water beads on the surface, it is not porous. Check for warping of material and use clamping where warping is evident. 

NOTE: The sealing mixture of 1 Weldbond® to 5 water should not be used where water alone would have an adverse effect, i.e. on water soluble fillers. 

Bonding Porous Surfaces (i.e. China, Pottery, Ceramics)- First seal both surfaces as above. Allow to dry (approx. 1 hr.) then spread thin film of Weldbond® over both surfaces and clamp lightly or tape until fully cured.

Bonding Porous to Non-Porous Materials (i.e. Wood to Metal)- Spread thin film on both surfaces. Leave open for 1 to 2 minutes to become tacky and slightly transparent, then squeeze both surfaces together with slight turning motion. The longer it is left to cure, the stronger the bond. Weldbond® cures by evaporation. When fully cured the bond is clear (transparent). 

Bonding Non-Porous Materials (i.e. Glass to Glass)- Spread thin film on both surfaces.  Leave open for 2 to 3 minutes, then squeeze surfaces together with a slight turning motion.  The longer it is left to cure, the stronger the bond.  When cured the bond is clear. Higher temperature and lower humidity speeds curing. 

Weldbond® can be applied with a brush, roller, sponge, spray gun, or soft broom. Rinse tools thoroughly with clean water after use.  Using Weldbond® as an additive will improve moisture resistance and reduce porosity in concrete/cement mixes/grouts and plasters.

ECONOMY: Concentrated Weldbond® provides substantially more coverage than other adhesives if used appropriately and dilutes for further economy.  Weldbond® can be diluted with up to 25% water to make a lower cost glue suitable for applications such as dense wood and glass to glass. Even this diluted mixture creates an exceptional bond. 

COVERAGE:  Listings are approximate and are to be used as a general guide.

Weldbond® undiluted                                                           400 / 500 sq. ft. per gal

Weldbond® diluted with 5 parts water                                         1,400 sq. ft. per gal

As a slurry**                                                                                   270 sq. ft. per gal

ADHESIVE MIX: For bonding a rough and uneven surface, mix 1 part Weldbond®, 1 part water and 5 parts filler (plaster, tile grout, mortar mix or sand mix cement).

CURE TIME:  Weldbond® becomes tacky quickly and will dry within the hour on porous surfaces.  Provides a strong bond within 24 hours and tremendous strength within a few days. The sealing mixture of 5 parts water to 1 part concentrated Weldbond® dries in approximately 1 hour.

WORKING TEMPERATURE:  For maximum performance use at temperatures above 50°F / 10°C and on surfaces below 200°F / 92°C.


Solid Content 51 – 53 %
Viscosity 10,500 – 12,000 CPS
PH 4.5 – 5.5
Particle Size Medium, Average 1.5u
Particle Charge   Nonionic
Specific Gravity 1.095
Residual Monomer 0.5% Maximum
Odour Slight, Characteristic
Colour Wet White
Colour Dry Clear
Flexibility Flexible
Water Resistance Good
Appearance Slightly Hazy
U.V. Resistance Very Good
G.T. (Glass Transitional) Spec is 5+

EXCEPTIONS: Some types of plastic, rubber and cast metals will not produce a bond with Weldbond® , i.e. polyethylene, unbacked vinyl, P.V.C., Teflon®, polypropylene, vinyl to vinyl, cast iron, cast aluminum.  Weldbond® is not intended for marine applications.  It is not recommended for use on exposed exterior surfaces. Garage interiors are acceptable.

NOTE: Do not use when bonding containers designed for use with, or subject to, hot liquids.