1:1 Mix Ratio 30 Shore A Vacuum Bagging Grade Platinum Cure Liquid Silicone Rubber for Yacht and Aerospace Molds

Hanast HN-E630 belongs to the HN-E6XX series of two-component, food grade addition-cure (platinum-catalysed) liquid silicone rubbers. Components A and B are mixed 1:1 by weight and cure at room temperature or with heat acceleration. At 30 Shore A the cured rubber combines 6.2 MPa tensile strength, 16 kN/m tear strength and 470% elongation, which makes it suitable for large composite tools, vacuum bagging master molds, automotive and aerospace prototype tooling, GRG and architectural master molds, and high-detail decorative molds. The series covers eleven hardness grades from Shore A 0 to 50, so one material family serves ultra-soft gel parts, fine detail molds and firm high-wear tooling.

• Composite Tooling and Vacuum Bagging Grade - 470% elongation and 16 kN/m tear strength at 30 Shore A allow the rubber to stretch over curved hull sections and undercut tooling without tearing during demolding, which suits yacht vacuum bagging, prepreg and RTM master molds.
• Automotive and Aerospace Prototype Molds - the same grade reproduces complex ribs, brackets, ducts and wind tunnel models, and can be heat accelerated at 80-100 deg C in 20 minutes or less for fast prototype turnaround.
• GRG, GRC and Architectural Master Molds - low linear shrinkage of 0.1% or less keeps panel thickness, reveals and joint lines consistent from master to production molds.
• Eleven Hardness Grades Shore A 0 to 50 - HN-E600 (Shore A 0 ultra-soft gel) through HN-E650 (Shore A 50 firm elastomer) share the same 1:1 mix ratio, so buyers source the full range from one supplier.
• 1:1 Mix Ratio by Weight - equal-part dosing reduces weighing error and suits both manual batching and meter-mix dispensing equipment.
• Dual Curing Mode - 3-4 h at 25 deg C for large tools, or 20 minutes or less at 80-100 deg C for production lines, with a 30-40 minute pot life for mixing, degassing and pouring.
• Low Viscosity and Fast Degassing - 5000 +/- 500 mPa.s for HN-E630, and 2000 to 7000 mPa.s across the range, gives good flow into deep relief and fewer pinholes on the mold face.
• Food Grade and Eco Friendly - FDA, MSDS and RoHS certified, odourless, non-toxic and non-corrosive, so the same grade also serves chocolate, candy and baking molds.
• Temperature Resistance -50 deg C to 200 deg C - stable in heat-accelerated curing, hot workshops and high-temperature transport conditions.
• No Low-Molecule Release - volume stays unchanged during crosslinking, so master dimensions and mold fit are repeatable batch after batch.
• Platinum Catalyst Poisoning Control - the TDS documents incompatibility with organotin compounds, sulfur and polysulfide compounds, amines, polyurethane, phosphorus compounds, organic acids and solder flux residues, which cuts cure failures on site.
• OEM and Private Label Customization - hardness, viscosity, colour, pot life and private label packing available for bulk and wholesale programs.
• Bulk Supply Ready - components packed in 10/20/25 kg iron or plastic drums or 20/40/50 kg kits per set, 50 tons per month capacity, 12 months shelf life and non-dangerous goods classification for transport.

• Composite and industrial tooling - yacht vacuum bagging, prepreg and RTM master molds, automotive parts, aerospace composite molds, wind tunnel models, prototypes and fixtures.
• Architecture and construction - GRG and GRC panels, cement wall tile, brick veneer, split-face tile, 3D wall panel, culture stone, terrazzo, paving slab and tactile paving molds.
• Art, craft and casting - resin and polyester casting, sculpture, jewelry, candle, soap, wax, life casting, silicone doll skin and cultural stone reproduction.
• Food contact molds - chocolate, candy, sugar craft, baking, ice and general food mould making in FDA certified grade.
• Medical and wearable - artificial human body parts, prosthetic liners, silicone insoles and cushioning components.

1. Pre-mix - stir Component A and Component B thoroughly before use to ensure homogeneity.
2. Weighing - accurately weigh A and B in a 1:1 ratio by weight using a precision scale.
3. Mixing - mix for 2-3 minutes until uniform; scrape the container walls and bottom.
4. Degassing - for bubble-free molds, degas under vacuum to remove entrapped air.
5. Pouring - pour into the clean, dry mold frame within the 30-40 minute pot life and ensure full coverage.
6. Curing - cure at 25 deg C for 3-4 h, or heat at 80-100 deg C for 20 minutes or less; demold after full cure.

• For industrial and professional use only. Wear nitrile gloves, safety goggles and protective clothing; avoid skin and eye contact.
• Eye contact: rinse immediately with plenty of clean water for 10-15 minutes and seek medical attention. Skin contact: wipe off with a clean cloth, then wash with soap and water; do not use solvents.
• Ensure adequate ventilation in the work area. Do not ingest.
• Catalyst poisoning warning - this addition-cure platinum silicone may fail to cure in contact with organotin compounds, sulfur and polysulfide compounds, amines, polyurethane, phosphorus compounds, organic acids and solder flux residues. All substrates, tools and containers must be clean and free of these contaminants.
• Do not use with condensation-cure (tin-cure) silicone residues without thorough cleaning.
• Do not add colourants or fillers before testing, as these may disrupt catalyst activity and prevent cure.
• The mixed compound has a 30-40 minute pot life; use promptly and do not return unused mixed material to the original containers.
• Keep containers tightly sealed when not in use and store away from food, children, acids, alkalis and incompatible materials.

Shenzhen Hanast New Materials Co., Ltd. manufactures industrial silicone materials at a 40,000 square metre production base in Guangdong, China, supplying platinum cure liquid silicone rubber to gypsum and plaster factories, culture stone and cast stone producers, wall and floor tile manufacturers, cement component producers, craft mold makers and composite processors worldwide.