1. Si chimodzi mwazinthu zofunikira zopangira zithunzi zaphidiator tepo, komanso mankhwala ofunikira a phosphorous. Itha kugwiritsidwanso ntchito popanga ditsinyl phosphine oxide, etc.
2.Imakhala wapakatikati, womwe umagwiritsidwa ntchito kwambiri pokonza anti UV ogwiritsa ntchito, ma antiophosphorous flardants, ma antioxaxxidants, ma pulasitiki ndi asymmetris canthelysts.
