35 Shore A 1:1 Mix Ratio Paver Tactile Paving Grade Platinum Cure Liquid Silicone Rubber for Curb and Slab Molds

Hanast HN-E635 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 35 Shore A the cured rubber delivers 6.5 MPa tensile strength, 15 kN/m tear strength and 470% elongation, a firm, tough mold for paver and tactile paving (blind path) molds, curb and kerb molds, block and slab molds, retaining wall block molds, garden edging and stepping stone molds, exposed aggregate panels, precast concrete parts, terrazzo, culture stone and cement wall tile.

• Paver and Tactile Paving Mold Grade - 6.5 MPa tensile strength with 470% elongation holds flat faces, chamfers and raised bar patterns on tactile paving and paver molds, and releases deep interlock profiles without tearing.
• Curb, Kerb and Block Tooling - the firm 35 Shore A wall resists deformation when casting long curb and kerb sections and heavy blocks, keeping arrises and radius ends sharp over repeated demolding.
• Precast Slab and Panel Molds - low linear shrinkage of 0.1% or less keeps slab thickness, joint lines and surface texture consistent, which suits precast panels, exposed aggregate slabs and retaining wall blocks.
• Garden and Landscape Products - reproduces stepping stone, garden edging, cobble and textured surface detail for landscape yards and DIY paving ranges.
• 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 molds, 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.
• Eleven Hardness Grades Shore A 0 to 50 - HN-E600 ultra-soft gel through HN-E650 firm elastomer share the same 1:1 mix ratio, so plants can tune mold stiffness without changing process.
• Viscosity 5500 +/- 500 mPa.s - good flow into deep interlock profiles and narrow grooves, with easy vacuum degassing and fewer pinholes on the paving 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 during heat-accelerated cure, in hot workshops and in high-temperature transport.
• 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, cutting cure failures on site.
• OEM and Private Label Customization - hardness, viscosity, colour, pot life and private label packing available for bulk and wholesale programs.
• Non-Dangerous Transport and Bulk Packing - 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, classified as non-dangerous goods for export.

• Paving and municipal - paver, tactile paving and blind path tile, curb, kerb, block, slab, retaining wall block, driveway stone and exposed aggregate panel molds.
• Landscape and garden - stepping stone, garden edging, cobble, paving stone, decorative garden ornament and artificial rock molds.
• Building products - cement wall tile, brick veneer, mosaic, terrazzo, culture stone, precast panel, GRC panel and 3D wall panel molds.
• Art and craft - sculpture, statue, resin and polyester casting, jewelry, candle, soap, wax, life casting and doll molds.
• Food contact - chocolate, candy, sugar craft, baking and ice molds in FDA certified grade.

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.