I have used it on tool handles and on a master plugs for casting molds. I have mentioned it once or twice hereabouts but apparantly I am an uninteresting fellow.
The resin I have used is the Sun Cure, Ding All Instant/Sanding Resin. It is produced and sold by SurfSource. They use it to make surfboards. It is Silmar 249b polyester resin with the Titanium Dioxide added by the guys at Surfsource. They even sell the additive separately if you want to experiment.
Their internet address is:
www.Surfsource.net
The first bottle I had I let sit for too long (it has a 6-9 month shelf life)and it had ambered, it still worked but it did have a yellowish tint when it cured. The new bottle I opened immediatley and started using on my newest set of masters. It cures perfectly clear.
With the Sun Cure resins, you have to give it the initial full blast of UV or direct sun for 10 sec or so, then move to difused location or turn down the UV. It will cure hard in minutes.
Full spectrum florescent spiral bulbs have worked great, so far, for producing a nice even light for curing. Don't put it on thick as it is not a thick casting resin and the TiO2 will build up some heat and cause the resin to crack. Should be perfect for using on PR pen blanks as they should have no chemical reactivity issues.
My last batch of pieces I was using to set up for my plugs I bagged them in ziploc bags so I could just roll and coat (sorta like a resin shake and bake), squeezed the air out and then exposed them in the bags, an hr later I returned and peeled the bags off, they were hard, but I set them back under the lamps to make sure they fully cured anyway.
