8 9 Atul provides epoxy systems for B-stage prepregs with varying shelf life. They have excellent impregnation properties that are compatible with a variety of reinforcements, providing high mechanical strength and thermal resistance. Lapox systems Mixing ratio (resin : curing agent) Gel time2 @ 120 °C Tg3 Recommendations parts by weight mPa s °C Compressed laminates ARPN-36 | K-10 | K-86 100 : 40 : 1 - 3 7 - 12 205 - 2104 Suitable for mica paper impregnation. ARPN-36 | K-86 100 : 3 - 6 8 - 12 240 - 2454 L-12 | K-5 100 : 27 8 - 10 150 - 160 Suitable for manufacturing G-10 and G-11 laminates. L-12 | K-10 | K-86 100 : 35 : 1 - 3 19 - 21 150 - 160 Suitable for G-11 laminates. B-staged prepreg offers long shelf life. L-67 | K-66 | K-13 100 : 23 : 0.1 - 3.0 7 - 9 @ 150 °C 130 - 140 Suitable for G-10 laminates. L-68 | K-66 | K-13 100 : 32 : 1 - 3 7 - 9 @ 150 °C 130 - 140 Suitable for FR-4 laminates. Hot melt ARL-159 | AH-357 | AC-22 100 : 30 : 1 - 3 4 - 8 155 - 165 Offers extended shelf life of prepregs. ARL-159 | AH-619 100 : 40 30 @ 150 °C 180 - 200 Designed for aerospace, defence and engineering applications. ARL-160 | AH-357 | AC-22 100 : 15 : 1 - 3 8 - 9 110 - 120 Moderate Tg ideal for sporting goods, defence, infrastructure and general engineering applications. Solvent based ARL-162 | AH-380 100 : 1.5 14-18 90-100 System for sporting goods - hockey sticks and racquets. Lapox systems Appearance Softening point Viscosity5 @ 25 °C Recommendations visual °C mPa s Benzoxazines ARBZ-101 Yellowish solid 60 - 80 1,000 - 7,000 6 @ 100 °C Bis-F based high Tg resin. Provides excellent moisture resistance, good dimensional stability and flame retardancy in advanced composites. ARBZ-10 A 751 Yellowish liquid 74 - 76% (solid content) 100 - 4007 ARBZ-10 solution in acetone with 75% solids. ARBZ-11 Yellowish solid 60 - 80 50 - 5006 @ 125 °C Bis-A based high Tg resin. Provides excellent moisture resistance and good dimensional stability in advanced composites. 2Method: Gel time - DIN 16945 | 3Tg: glass transition temperature; Tg: ISO 11375-2 | 4HDT value at 200 °C | 5Brookfield viscosity | 6Viscosity by CAP 2000 (ASTM D4287) | 7Viscosity by ASTM D2196 Features • high Tg • easy processability • flame retardant1 (FR) • variable shelf life • excellent mechanical strength • high thermal endurance Applications • aircraft | drone structural parts • automotive body parts • defence equipment (canister and housing) • FR-4 | G-10 | G-11 laminates • mica tapes • sporting goods (hockey sticks and racquets) • wind blade parts Prepregs | Compressed laminates systems
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