Method for making a weatherstrip

A method of making a weatherstripping product for use on automotive vehicles or for other weatherstripping applications, said method comprising the steps of:

• extruding an elastomeric weatherstrip,
• treating a surface of the elastomeric weatherstrip with an abundance of ultraviolet radiation from a UV source to thereby provide a UV treated surface on the weatherstrip,
• said ultraviolet radiation is applied from a UV source having an intensity within the range of about 0.2 to about 40 Joules, and
• said ultraviolet radiation is applied for a time period of about 1/2 to about 60 seconds,
• applying a low friction surface coating to the UV treated surface on the weatherstrip to provide a coated elastomeric weatherstrip, to thereby provide a weatherstripping product with improved abrasion resistance, anti-squeak, and ice release characteristics.

A method of making a weatherstripping product for attachment on an automotive vehicle or for other weatherstripping applications, said method comprising the steps of:

• forming a support flange member to a predetermined configuration,
• extruding an elastomeric weatherstrip,
• said elastomeric weatherstrip is a material selected from at least one elastomeric material from the group consisting of EPDM elastomer, neoprene elastomer, polyisoprene elastomer, vinyl chloride elastomer, butyl rubber, nitrile rubber, natural rubber and butadiene rubber,
• treating a surface of the elastomeric weatherstrip with an abundance of ultraviolet radiation from a UV source to thereby provide a UV treated surface on the weatherstrip,
• said ultraviolet radiation is applied from a UV source having an intensity within the range of about 0.2 to about 40 Joules, and
• said ultraviolet radiation is applied for a time period of about 1/2 to about 60 seconds,
• applying a low friction surface coating to the UV treated surface on the weatherstrip to provide a coated elastomeric weatherstrip,
• mounting the coated elastomeric weatherstrip on said support member, to thereby provide a weatherstripping product with markedly improved anti-squeak and ice release characteristics.