Food Grade Transparent Liquid Silicone Rubber 20 Shore A High Transparency Clear LSR for Baby Feeding Products

Product Description:

6250-20HAB is a 20 Shore A transparent liquid silicone rubber from the 6250-HAB high-clarity series. It is a two-component platinum-cure grade at 1:1, formulated for parts where the material itself is on show — baby feeding products and transparent tableware.

One of the standout features of this transparent liquid silicone rubber is its curing mechanism. It uses a two-component platinum addition cure, which leaves no peroxide breakdown products, so the cured part has no odour and low volatiles. This curing type is especially important for applications in sensitive environments, such as infant feeding products and food-contact items, where safety and hygiene are paramount. The platinum-cured silicone ensures that the final product is free from harmful residues and offers excellent resistance to degradation over time.

Light transmittance is about 82% with haze around 8%, which is what lets a 20 Shore A part read as clear rather than milky. That clarity is the whole point of the HAB series: the same hardness steps as the standard food-grade range, formulated for visible parts.

At 20 Shore A the grade is soft enough for teats, valves and spoon heads while still holding 5 MPa tensile and 13 kN/m tear, so a thin wall does not tear at the demould edge. Parents and manufacturers alike can trust this material for baby bottle nipples, pacifiers, and other feeding accessories because it complies with stringent safety standards. The silicone's resistance to high temperatures and chemical stability ensures it can withstand repeated sterilization processes without losing its shape or performance.

 Food-contact uses are seals, gaskets and valves in processing and packaging equipment. Resistance to oils and fats keeps the part stable where a thermoplastic would swell or stress-crack.

Shelf life is 6-12 months from the production date at 25 °C. Store the drums sealed and upright in a dry, ventilated place out of direct sunlight; do not turn them over in transit or let sharp edges strike them.

Moulding temperature is 170-200 °C. This is a standard grade, not a non-post-cure grade, so parts should be baked at 200 °C for 2-4 hours to drive off volatiles and stabilise physical properties — the same state the LFGB migration test assumes.

In summary, 6250-20HAB is a 20 Shore A platinum-cure transparent LSR with 5 MPa tensile, 700% elongation and 13 kN/m tear, at roughly 82% transmittance. It is a food grade, not a medical grade. For parts that enter the body or contact blood, ask for the medical grade LSR series instead. Whether used in delicate baby products or robust food processing equipment, this transparent silicone rubber delivers unmatched performance and peace of mind.

Features:

• Product Name: Transparent Liquid Silicone Rubber 6250-20HAB
• Grade: Food Grade, High Transparency (6250-HAB Series)
• Hardness: Shore A 20
• Appearance: Transparent with Slight Blue Tint
• Density: 1.10 g/cm³
• Tensile Strength: 5 MPa
• Elongation at Break: 700%
• Tear Strength: 13 kN/m
• Mix Ratio: 1:1
• Light Transmittance: 82%
• Haze: 8%
• Curing Type: Two-Component Platinum Addition Cure
• Moulding Temperature: 170 - 200 °C
• Post-Cure: 200 °C for 2-4 Hours
• Compliance: FDA 21 CFR 177.2600, LFGB, RoHS, REACH
• Shelf Life: 6-12 Months at 25 °C

Technical Parameters:

Applications:

6250-20HAB is a food-grade LSR made in Guangzhou, Guangdong, China. It is supplied as two components in 20 kg drums, paired 1:1 at the press.

One of the primary application occasions for this product is in the food and beverage industry. Certified by FDA 21 CFR 177.2600 and LFGB, the silicone rubber ensures compliance with strict food safety standards. Its high transparency and slight blue tint appearance make it perfect for products where visual clarity and aesthetic appeal are important, such as food molds, baking mats, and seals for food containers. The 1:1 mix ratio keeps the shot weight repeatable, and the 1.10 g/cm³ density is what you need for part-weight and cycle-cost calculations.

This grade is a food-contact material, not a medical grade. For parts that enter the body, contact blood or form part of a registered device, the medical grade LSR series is the correct choice — it carries ISO 10993 reports that this grade does not.

It runs on standard liquid injection molding equipment at 170-200 °C. As a two-component grade it is metered and mixed at the press, not poured into open moulds. Its excellent aging resistance allows it to maintain mechanical integrity and transparency over extended periods, even under harsh conditions. Furthermore, the packaging details of 20 Kg per pail with Part A and Part B packed separately facilitate convenient storage and handling.

Free samples are available for moulding trials, and our engineers can review your gate design and cure profile before you commit to a bulk order, RUIHE offers flexible supply options supported by free technical support to assist manufacturers in achieving optimal processing results. Payment terms include T/T with a 30% deposit before production and the balance before shipment, ensuring a smooth transaction process.

Overall, the RUIHE Transparent Liquid Silicone Rubber 6250-20HAB is an excellent material choice for applications demanding food safety, high transparency, good resistance to aging, and reliable two-component mixing, making it versatile for food, medical, and industrial uses.

Packing and Shipping:

Product Packaging: The Transparent Liquid Silicone Rubber is carefully packaged in sturdy, sealed containers to prevent contamination and ensure product integrity during transit. Each container is clearly labeled with product information, batch number, and safety instructions. Packaging options include drums, pails, or custom containers based on order requirements.

Shipping: The product is shipped following all applicable safety and transportation regulations for chemical materials. It is handled with care to avoid exposure to extreme temperatures and direct sunlight. Shipping methods include air, sea, or land freight, with appropriate documentation provided to ensure smooth customs clearance and timely delivery to the customer.

FAQ:

Q1: What is the brand and model number of the Transparent Liquid Silicone Rubber?

A1: The Transparent Liquid Silicone Rubber is branded as RUIHE with the model number 6250-20HAB.

Q2: Where is the Transparent Liquid Silicone Rubber manufactured?

A2: This product is made in Guangzhou, Guangdong, China.

Q3: What certifications does the RUIHE Transparent Liquid Silicone Rubber have?

A3: It is certified with FDA 21 CFR 177.2600, LFGB, RoHS, and REACH standards.

Q4: What is the minimum order quantity and packaging details for this product?

A4: The minimum order quantity is 20 Kg. The product is packaged in 20 Kg per pail, with Part A and Part B packed separately.

Q5: What are the delivery time and payment terms for ordering this silicone rubber?

A5: Delivery time ranges from 7 to 15 working days. Payment terms are T/T with a 30% deposit before production and the balance paid before shipment.