Silicone Release Slip Spray 400ml

Silicone release spray is one of those products you reach for without thinking twice once you’ve used it on a job. This 400ml aerosol is formulated specifically for uPVC push-fit soil, waste drainage and underground discharge systems. It lubricates rubber seals and plastic spigots so joints slide together cleanly, without the usual wrestling match that ends with a split seal or a scuffed fitting. If you’ve ever tried to push a 110mm soil pipe into a tight coupling without any lubrication, you’ll know exactly why this exists.

The spray works by coating rubber and plastic surfaces with a fine, even layer of silicone. This reduces the friction between the two components and allows the parts to move into position without deforming the seal. Once the joint is made, the silicone doesn’t interfere with the integrity of the connection. It simply sits between the surfaces, doing its job quietly.

Where Silicone Release Spray Earns Its Keep

This spray is a practical everyday product for plumbers, drainage engineers and groundworkers who are regularly installing or modifying uPVC pipework. It’s particularly useful when working in tight spaces where you can’t get enough body weight behind a joint to push it home by force. A quick spray on the seal and the spigot, and the fitting slides in with far less effort.

It’s also useful when dismantling existing pipework. Rubber ring joints that have been in service for some time can grip surprisingly hard, especially on underground drainage where soil pressure has compressed the fitting over the years. A spray of silicone release into the joint before attempting to pull the sections apart makes the job considerably easier and reduces the risk of cracking aged fittings.

Prevention of Sticking Between Rubber and Plastic Parts

The silicone release spray is equally effective at preventing rubber and plastic components from bonding together during storage or when systems are temporarily assembled before final installation. When uPVC components are stacked or banded together on a pallet for any length of time, the rubber seals can begin to take on the profile of adjacent surfaces. A light coating of silicone release spray before storage keeps everything separate and easy to pull apart when you need it.

The aerosol format gives good reach and coverage without waste. You can direct the nozzle accurately into a socket or onto a seal without saturating the surrounding area. The 400ml can holds enough product to get through a substantial installation run without needing to stop and restock, which matters when you’re working in a trench and the supplier is an hour away.

At this price, it makes sense to keep a can in the van at all times. The amount of time saved on a single day’s drainage run more than justifies the cost, and having to force joints without lubrication risks damaging fittings that cost considerably more to replace.