Petroleum resin used in adhesive The characteristics of pr-a3090, a1095, a2100, a1101, a2110, a2120 petroleum resin in hot-melt adhesive: Pr-a series can be separately used as tie resin in hot-melt adhesive or mixed with other tie resin. Application field recommended:hot-melt adhesive. Other use:hot-melt contact adhesive, solvent contact adhesive