Gluing Plastic By Capillary Cementing.
Tips on gluing plastic.
Gluing plastic? Want to know what is the best plastic glue and what is the best way to use it?
In actual fact, there are dozens of different ways to apply glue. Within the sign & display sector, the capillary cementing technique is the most common way to apply adhesives.
Capillary cementing uses a water thin glue and Weldon 4SC, is probably our most common glue for this type of application.
Capillary cementing is a technique whereby the water thin Weldon 4SC glue is allowed to flow through a joint area by capillary action.
The technique for capillary cementing is simplicity in itself….
- First, make sure all parts fit together properly. The surfaces must be completely flush, otherwise the Weldon 4SC glue will not work.
- Next, using a clamp, join the pieces together, making sure that the gluing surfaces are in intimate contact with each other. The surfaces must be horizontal, otherwise the Weldon 4SC glue will run out.
- Using a dropper or more preferably a syringe, apply the Weldon 4SC glue along the full length of the joint. To cement a box-corner joint, apply the Weldon 4SC glue to the inside edge of the part. If cementing a joint which is not at an edge, apply the Weldon 4SC glue from both sides.
- If the cement does not flow completely into the joint, tilt the vertical piece towards the outside. This should allow the adhesive to flow freely over the entire joint.
- Let the joint dry thoroughly before removing tape or clamps. Typically, we suggest between 24 and 48 hours. Over a period of weeks, the joint will become stronger.
Gluing plastic does not have to be a chore. Using our plastic glues, and the decades of expertise that comes with them, we will optomise your manufacturing processes!