Originally Posted by ncp
Correct me if I'm wrong, but I heard Starboard is HDPE that has a UV additive. Hence, why it can't be heat welded. Totally different beast and very useful in certain situations.
Could be. Not sure why it couldn't be heat welded in any case. It certainly melts the same (yes I have used it.) And I'm not really sure that HDPE is all that UV sensitive in any case.
This is from the description portion of the StarBoard (King Marine) website:
King StarBoard® is the original marine-grade high-density polyethylene sheet and the industry standard. It is the product of a proprietary process called K-Stran®, the most advanced manufacturing process for superior flatness and consistency. King StarBoard® is environmentally stabilized to withstand the harshest marine conditions. It will not warp, rot, or delaminate when exposed to humidity or water. King StarBoard® is easy to fabricate with standard woodworking tools and requires little or no finishing.
King StarBoard® is upgradable with our exclusive antimicrobial additive King MicroShield®. The latest technology for protecting the product surface against a broad spectrum of damaging bacteria, algae, and fungi by reducing the amount of microbes by 99.99% and killing the microbes on contact.
King StarBoard® is upgradable with King FlameShield, for ASTM E-84 Class A or B Flame/Smoke Compliance and CAN/ULC-S102 for Canadian Compliance.
For more information about King MicroShield® and King FlameShield, please visit those product pages.
Doesn't really mention UV.