The Mas slow hardner system is an excellent choice for people who need a little extra set up time as it is slower to go off than some other epoxies I have used. It sets up clear on it's own and mixes well with additives. I will be using this product on all my new projects.
I used the MAS Epoxy resin products for repairs on an Hydra Sports Aero Cobra I am restoring. The slow hardener was a great choice for the repairs I had and did everything MAS said it would. Its slower set up time gave me plenty of time to work. It was easy to mix and apply. I ran out with one small job to do so I bought another brand locally. I greatly preferred the MAS over the other brand.