Review on Proto Pasta HTP31710 BLK Filament 1 75 Black by Scott Ramu

I needed something that could withstand direct sunlight all day in hot summer and I was hoping HTPLA with heat treatment process would be sufficient . May be! But there's no way to glow my parts without deforming them to an unusable level, and without direct sunlight glowing enough to soften them into a hard, leather-like material. Given that the parts I'm trying to anneal are 3mm thick. Walls span up to 200mm so warping is likely, but would most likely be possible if I went through the process of cutting jigs and support structures to support these areas. Compared to other HTPLAs I've tried, this one definitely has the least warping and prints the best.