2C PU foam: the hard one

The installed parts need to be correctly aligned, wedged and/or screwed into position on firm, dust and grease-free surfaces. The adjacent surfaces need to be covered to protect them (e.g. with masking tape). Do not wet the surface. 2C PU foam will harden regardless of the moisture.

Ensure the workplace is well ventilated during processing. Please observe the information provided by the manufacturer about processing and ambient temperatures. If a certain maximum temperature is reached, the can may not be activated - there is a risk of bursting due to the reaction heat. Remove the plastic cap, screw onto the adapter. To activate, turn the plate or rotor on the base of the can approx. six times in the direction of the arrow. Please also observe the precise information provided by the manufacturer.

Once activated, the can must be shaken immediately approximately 20 times with the valve facing downwards. In the cold, shake several times so that both components in the can are mixed well. After shaking, wait for about 30 seconds, then shake again briefly before using.

Hold the can valve so it is facing downwards and test the foam briefly. If mixed correctly, the foam will have the same colour as shown on the can. If necessary, shake the can thoroughly again. If no hardener is added, a 2C PU foam will react like a 1C foam with a delayed hardening time.

When the foam becomes warm, this indicates that the reaction is underway. The contents of the can must be processed after a few minutes. Always completely empty the can.

When fresh, the foam should not be cut or painted over because its volume will increase many times and penetrate the hollow space. The foam can be cut or sawn after a hardening period of about 20 minutes. Its full capacity is reached after about 120 minutes.

Spent PU foam cans and any residues inside are recycled to approx. 95% which saves resources and CO₂. PDR – the high-tech recycling company, the leading European manufacturer0 of PU foam cans – collects the spent cans from professional users free of charge. DIY stores and recycling depots will take back individual cans. Online search of the acceptance points or collection orders at www.pdr.de or call: 0800- 7836736.

Always wear gloves when working with PU foam products because the fresh foam is highly adhesive and can only be removed mechanically after it has hardened. Likewise, wear goggles. For more information about product safety and handling, please refer to the product safety data sheet and the manufacturer's product label.