I've put up maple window trim on a kitchen window. I'm not going to stain it but does anyone have any suggestions on what type a finish to put on it. It will get a little sun. thank you.
Any oil based finish will darken over time---to a color usually referred to as a 'warm amber'. That color is normal and some people only notice the change when it does not happen---as with water based finishes, which do not darken over time. Those finishes often leave a washed out look to natural wood.
Regular oil based varnish is the most utilized finish by builders as it is easy to apply and can be fixed easily. Dings/scratches/etc. can be spot sanded and spot varnished.
Polyurethane can be either oil based or water based---but is very difficult to repair---dings/scratches/etc.---due to the hardness of the dry finish. The defect has to be sanded out and the entire piece recoated.
There are UV additives to help sun fading.
Thank you handymac. I didn't know that about varnishes.