Conquer those household DIY repairs this Bank Holiday weekend with WEST SYSTEM® epoxy


It’s nearly the Bank Holiday weekend, and for many of us that means quality time with family and friends – and DIY!

Did you know that you can use your trusted WEST SYSTEM® epoxy for lots of indoor and outdoor projects – whether it’s fixing a cracked toilet or sorting out problems with your plaster?

Here, we bring you our guide on the top repair jobs you can tick off the list quickly and easily, meaning more time for the fun stuff.

1. Sealing around sinks and countertops with epoxy

As well as sealing the surfaces of high moisture areas, you can also use epoxy to seal the edges of sink and plumbing cut-outs in particle boards or plywood work tops.

Any water that has leaked from beneath drop-in sinks, as well as leaks or condensation from water lines or fixtures, can penetrate, swell and rot the plywood and timber under the laminate.

When repairing damage around sinks and plumbing, make sure you turn off the water source before starting. You also need to remove the sink or fixture and thoroughly dry the area and remove any rotten material before coating with epoxy.

2. Sealing plaster and drywall in the bathroom

Epoxy can also be used to protect stud wall plaster board (drywall) or plaster in high-moisture areas such as the shower. Begin by coating the drywall with WEST SYSTEM epoxy before painting or tiling over it – if the walls are painted make sure you sand the painted surface thoroughly before applying the epoxy. Coat the edges and the underside of plumbing cut-outs to prevent leaks or condensation from wicking into the stud wall. Again, it is important to make sure that when you are repairing damage around the plumbing you turn off the water source and ensure the area is properly dry before applying any epoxy.

3. Repairing cracked toilet cisterns with epoxy

Epoxy will bond to the porous side of ceramic materials like toilet cisterns. As with the repairs above, when you are repairing a cracked or broken tank, first dry the tank thoroughly. Broken pieces should fit tightly so the epoxy will not need to be thickened. Coat the broken edges and fit the pieces together – a small bead of epoxy should squeeze from the joint. Allow the epoxy to cure and clean the bead of epoxy from the exposed outside with a single-edged razor blade. On the inside, apply a layer of fibreglass tape over the joint for reinforcement. Allow the epoxy to cure thoroughly before refilling the tank. If any small chips are missing, fill the void with thick epoxy/adhesive filler. A good way to make the repair more discreet is to add white pigment to the mixture on exposed sides.

4. Bonding bricks and stone

WEST SYSTEM epoxy can be used to bond loose or broken bricks. If the mortar is solid and the gap is small, use a non-sagging epoxy/adhesive filler mixture thickened to a mayonnaise consistency. Apply a layer of the mixture to the inside of the cavity and push the broken brick back into place.

If the mortar is loose or even missing, you can make a bonding grout of epoxy and adhesive filler and masonry sand. For colour, add a little dry cement or mortar and apply it to the bonding surfaces, being careful to avoid getting epoxy on the face of the bricks.

Bonding stones with WEST SYSTEM epoxy is also a simple and easy process, perfect for decorative landscaping to achieve a dry laid appearance (without mortar). It is important to clean and dry the stones before starting the process. Then, use epoxy and adhesive filler thickened to the consistency of peanut butter to bond the stones in strategic places. This will prevent the stones from shifting or settling.

5. Repairing cracked concrete

WEST SYSTEM epoxy is great to repair cracks in concrete – all you need to do is clean the area around the crack, removing any loose debris and then pour or inject the epoxy into the crack. If you are trying to fill a larger crack, particularly on walls, you may need to thicken the epoxy with a bit of cement powder so that it stays in place when you apply to the seam of the crack. Once the epoxy has cured, you can seal the crack with a water-resistant filler so that it won’t shrink and fall out.


For tutorials on using epoxy or to speak to one of our experts about your home projects, head to the West System International support page.

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