by Jim Derck—GBI Technical Advisor
When using WEST SYSTEM® 300 Mini Pumps, the most important things to remember are:
- Read the instructions.
- Use one full pumps stroke of resin for each one full pump stroke of hardener to get the proper resin-to-hardener ratio.
If you’re ever concerned that your pumps aren’t metering properly, simply mix a test batch of 3 pump strokes each of resin and hardener. Stir thoroughly and make sure it’s fully cured before continuing with your project. Continue reading