As the name suggests, this washer provides a higher level of sealing than normal flat washers. It is a flat washer, thin in thickness. For this product range, RAL colours are not applicable (only available in black).
The ribs provide a seal between the fastener head and the component contact face and helps to prevent ingress of liquids and dirt between the two faces.
This Bülte flat sealing washer is only available in PE. The properties of polyethylene provide good chemical resistance, is non corrosive and light. For this product range, RAL colours are not applicable (except for black).
They can be used in all fields of activity but are frequently found in the lighting sector.