Polypipe Waste Solvent Weld Knuckle Bend - 40mm x 90deg - Black

This knuckle bend is designed for 40mm ABS solvent weld pipes. It requires the use of solvent cement for a secure, permanent joint.

While ABS is suitable for general household waste temperatures, prolonged exposure to very high temperatures should be avoided. It is generally suitable for standard kitchen sink and sanitary waste.

This is a 90-degree knuckle bend, designed to make a sharp right-angle turn in your waste pipe system.

You will need a pipe cutter for a clean pipe end, a deburring tool, and the appropriate Polypipe solvent cement and primer for ABS pipes. Gloves and eye protection are also recommended.

The ABS material offers good resistance to weathering, but for prolonged direct UV exposure, other materials might be more suitable long-term. For typical buried or concealed outdoor drainage, it should perform well.

Always follow the curing time recommendations on the solvent cement packaging. This typically ranges from a few hours to 24 hours, depending on temperature and humidity, before the system can be put under full load.

Ensure the correct solvent cement was used and applied properly. Check if the pipe was fully inserted and held for the required duration. If the leak persists, the joint may need to be cut out and redone.

Verify that both the pipe and the fitting are clean and the correct 40mm size. Check for any obstructions or damage inside the fitting socket. Ensure the pipe end is cut squarely.

Use the applicator provided with the solvent cement. Apply in a continuous motion. Work in a well-ventilated area to prevent premature drying.