SUMILITERESIN® PR-2243 I is a flake phenolic resin with good properties in foundry manufacture. It is designed with a high molecule number and is highly modified with bis-phenol-A in order to obtain low thermal expansion, anti peelback, and high stick point. It is also improves bending strenght. It is preferable add hexamine about 15%/resin when applied in resin coated sand (RCS).Information provided by Sumitomo Bakelite High Performance Plastics (sbhpp) |