{"id":884,"date":"2026-08-29T10:34:07","date_gmt":"2026-08-29T10:34:07","guid":{"rendered":"https:\/\/sihecomposites.com\/?post_type=products&p=884"},"modified":"2026-08-29T11:41:55","modified_gmt":"2026-08-29T11:41:55","slug":"pultrusion-resin-family","status":"publish","type":"products","link":"https:\/\/sihecomposites.com\/en\/products\/pultrusion-resin-family\/","title":{"rendered":"D\u00f2ng nh\u1ef1a pultrusion c\u1ee7a SIHE"},"content":{"rendered":"
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Unsaturated polyester resin<\/p>\n

SIHE Pultrusion Resin Series<\/h1>\n <\/div>\n
\n \"Application<\/picture> <\/div>\n
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Suitable for<\/h2>

Resins for composite profiles made by continuous pultrusion. SIHE confirms the grade against reinforcement, profile geometry, line speed and service requirements.<\/p>\n

\n SIHE<\/span>\n Manufactured by SIHE<\/span>\n <\/div>\n
Request a Quote<\/a><\/div>
Request a sample<\/a>Request current TDS<\/a>Request applicable SDS<\/a><\/div>\n

Need help choosing a grade?<\/a><\/p> <\/div>\n <\/header>\n\n

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Grade selection<\/p>\n

Grades and application options<\/h2>\n <\/div>\n
\n \n \n \n \n \n \n \n <\/colgroup>\n \n \n \n \n \n
Resin grade<\/th>\n Viscosity (mPa\u00b7s)<\/th>\n Gel time (min)<\/th>\n Solids content (%)<\/th>\n Key characteristics<\/th>\n <\/tr><\/thead>\n
SH296<\/th>\n 700-900<\/td>\n 16-20<\/td>\n 63-69<\/td>\n Terephthalic unsaturated polyester resin with medium viscosity and high reactivity. It provides good mechanical properties, good heat resistance and resistance to dilute-acid corrosion; used for pultruded products after process confirmation.<\/td>\n <\/tr>\n
SH298<\/th>\n 700-900<\/td>\n 16-20<\/td>\n 63-69<\/td>\n Light-coloured orthophthalic unsaturated polyester resin with moderate reactivity and a slower cure. Suitable for pultruded utility poles, flagpoles, door and window profiles, FRP grating, radomes and cable conduits.<\/td>\n <\/tr>\n
SH299<\/th>\n 700-900<\/td>\n 21-26<\/td>\n 65-69<\/td>\n Modified unsaturated polyester resin with good fibre wet-out, moderate reactivity and good mechanical properties. Suitable for pultruded composite profiles after line-condition confirmation.<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n

Gel time is measured in a 25\u00b0C water bath using 100 g of resin, 1 g of SIHE cobalt accelerator and 1 mL of standard MEKP. These are test conditions, not a production-use recommendation. Viscosity and gel time may be adjusted within the specified ranges according to seasonal conditions. Please refer to the applicable instructions before use.<\/p>\n

These are grade-specific reference values for preliminary selection. SIHE confirms the delivery grade against your application and process.<\/p> <\/section>\n \n

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Application and process<\/p>\n

Product & Application Gallery<\/h2>\n <\/div>\n
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