Be careful with Sintra. Heating causes release of hydrogen chloride gas.
From the MSDS for Sintra:
SECTION VI - HEALTH HAZARD DATA
These products are not considered to be a health hazard in the form in which they are sold (sheet, panel). However, if theseproducts are abraded, melted, welded, cut or processed in any manner that causes release of fumes or dusts, hazardous levelsof fumes or dusts may be generated from this product
EFFECTS OF OVEREXPOSURE:ACUTE: Physical irritation of the eyes may result from overexposure to high concentrations of dust from certainfabricating operations.Repeated skin overexposure to antimony trioxide can result in skin irritations.
CHRONIC: Repeated long term inhalation of antimony trioxide may cause inflammation of the upper and lowerrespiratory tract and/or fibrosis. Antimony has been determined by IARC as a Group IIB carcinogen.Studies have shown that workers exposed for long periods to·high concentrations of respirable PVC dust may retain thedust in their lungs. There is no evidence of a toxic response associated with such PVC dust retention.Repeated long-term inhalation/ingestion o f lead may lead to weariness, headache, severe constipation and colic. It hasbeen determined that lead is a reproductive toxin.
