Electrical properties adversely affected by hot, wet conditions, especially wood-filled grades. Very low water absorption. Limitation is that it is not stable in presence of alkalis or strong oxidising acids. Surface finish adversely affected by hot, wet conditions, especially wood-filled grades. Special fillers incorporated to produce magnetic compounds, provision of X-ray shielding, or for microwave absorption, or for low friction applications.
Limitations are that high-pressure processing equipment is needed.
Limited to dark colors owing to oxidation discoloration. Fillers required for moldings. Volatiles released during cure. Low cost and large amount of application experience. THe resins are used for bonding, coating and as moulding compounds.