Shoemaking - Renia - Primer for PUR (green)
Renia Primer for PUR is a clear liquid primer based on isocyanates for reinforcing aged PUR soles to allow bonding them with CR-based adhesives.
The advantage of using Renia Primer for PUR is its very short open time, only a few seconds. After priming use any Renia CR–adhesive instantly.
Made in Germany
*Make sure to use in a well ventilated area.
Shoe materials made of PUR-foam are likely to undergo a rapid aging caused by microbes and water. Multi-purpose cements only bond the surface of the PUR-materials. Under heavy load or stress the spongy material will then break.
Therefore the PUR bottom has to be reinforced by either coating with the vinyl-cement Renia –Syntic =TOTAL= or by Renia – Primer for PUR.
Make sure item to be treated is completely dry.
Wet shoes have to be dried first by pressing the sanded shoe bottom with absorbent paper for a few seconds.
Repeat until the paper stays dry.
Please note, Renia Primer for PUR is sensitive to moisture and dirt. Only use a clean and dry brush. The decomposed active substance appears as a white precipitate on the bottom. Avoid working directly from the bottle to avoid contamination with PUR dust, use from a separate container instead.
The Renia GmbH was founded in the year 1930 and has existed since then as an independent family company outside of any affiliated group, now led by the third generation.