Sprue Extenders

Sprue extenders have two primary uses.

1. They are used to extend molds of different heights when clamped together so that they are easier to inject.
2. They are often used to add additional reservoir of plastic when injecting molds that have a lot of shrinkage when cooling to contonue to feed plastic to the cavities longer.

I offfer these in in lengths from 1 inch to 6 inches, and if you need another length just let me know.  

There are quantity discounts starting at just 3 units, and the discount applies even if you order different sizes.  Just add each size you want to the cart, and your discount will automatically be applied when you reach each discount quantity.  

Discounts offered at quantities of 3, 5, 10, and 20