Weld-On 3, 4 and 16 are the most popular grades and are used mostly with acrylic and polycarbonate. Weld-On 3 is used to bond many different types of plastic together.
Megan " To the wonderful people at Stark's Plastics" Thank you so much for Curabitur fermentum
Donna H. " Wow- The frames were a total hit! So many compliments & they absolutely looked great. Thanks again for everything.