Food-grade LSR Baby Shape Sorter

# Food-grade LSR Baby Shape Sorter

---

Product Overview

A baby shape sorter is a classic developmental toy designed to help infants and toddlers build fine motor skills, spatial awareness, and shape recognition through hands-on play. At 橡楚（湖北）橡胶有限公司, we manufacture premium Food-grade Liquid Silicone Rubber (LSR) Baby Shape Sorters that prioritize infant safety without compromising on durability and developmental functionality.

Unlike traditional shape sorters made from hard plastic or painted wood, our LSR shape sorters feature soft, flexible silicone construction that eliminates sharp edges and reduces risk of injury during active play. We use only 100% food-grade liquid silicone rubber as our raw material, a non-toxic, hypoallergenic material that meets global infant product safety standards. Our shape sorter base and shape blocks are engineered for long-term use, with excellent tear resistance and temperature stability that holds up to repeated cleaning and everyday play from 6 months to 3 years of age.

As a specialized manufacturer of LSR products located at 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号, we focus on precise LSR injection molding to deliver consistent, burr-free products that meet tight tolerance requirements for infant toys. All our production processes follow ISO 9001 quality management standards to ensure every shape sorter leaves our facility free of defects and safe for baby use.

---

Technical Specifications

Material Properties

Physical Performance

Process Parameters

Our shape sorters are produced through precision LSR injection molding with controlled curing to ensure consistent material performance:

• Injection Molding Temperature: 160–170°C
• Curing Time: 90–120 seconds
• Post-Curing: 4 hours at 120°C to eliminate residual volatile compounds
• Dimensional Tolerance: ±0.15 mm for shape cutouts and blocks
• Packaging: Individually sealed in food-grade polypropylene bags

---

Product Advantages

1. Uncompromised Infant Safety

Safety is our top priority for baby products. We only source food-grade LSR raw material from trusted suppliers, with every production batch tested for harmful substances before shipping. Unlike hard plastic or wood, our soft LSR construction eliminates sharp edges that can cut or scratch baby gums and skin during teething, and the flexible material is gentle on developing teeth when babies chew on blocks. The large size of our shape blocks eliminates choking risk for infants over 6 months.

2. Easy Cleaning & Disinfection

LSR’s non-porous surface resists the growth of mold, bacteria, and odors, making it far easier to clean than porous wood or textured plastic. Our Food-grade LSR Baby Shape Sorters can be safely cleaned in multiple ways: wiped with baby-safe disinfectant, washed with warm soapy water, boiled for 5 minutes for deep disinfection, or placed on the top rack of a dishwasher. The material retains its shape and performance even after repeated disinfection cycles, with no cracking or degradation.

3. Excellent Durability & Long Service Life

Injection-molded LSR has superior tear and abrasion resistance compared to ordinary solid silicone, so our shape sorters withstand years of rough play, chewing, and dropping without damage. The material does not become brittle, sticky, or discolored over time, unlike cheap plastic toys that degrade and leach chemicals after repeated use. This durability makes our shape sorter a reusable toy that can be passed down between children, reducing waste.

4. Developmental Design Optimized for Early Learning

Our shape sorter is engineered with the right level of flexibility to support skill development: the soft LSR blocks fit easily into shape cutouts, giving babies positive reinforcement when they successfully match a shape, while still requiring enough fine motor control to encourage problem solving. The non-slip matte surface helps little hands grip blocks easily, even with sweaty or wet hands, and the soft texture provides sensory stimulation for developing tactile awareness.

---

Applications

Our Food-grade LSR Baby Shape Sorters are designed for early childhood developmental use across multiple settings:

1. Home Use: Ideal for playrooms, nurseries, and on-the-go play in strollers or travel bags. The soft, lightweight construction is safe for unsupervised floor play (for infants 6+ months) and can be easily taken to family outings or trips.
2. Infant & Toddler Daycare Centers: Durable, easily disinfected construction makes this shape sorter perfect for shared use in daycare facilities, where frequent cleaning and infection control are required.
3. Early Childhood Education Centers: Used as a hands-on learning tool to teach shape recognition, color recognition, fine motor skills, and problem solving to toddlers 1–3 years old.
4. Baby Gift Products: Our neutral, soft color options and safety-focused design make our LSR shape sorter a popular premium gift for baby showers, first birthdays, and new parent gifts.

Because the material is food-grade, it is also safe for use as a teething toy alongside its developmental function, giving babies a safe, non-toxic surface to chew on during the teething phase.

---

Selection Guide

Hardness Selection

We offer two standard hardness options for our baby shape sorters to meet different preferences:

• 35–40 Shore A: Extra soft, maximum flexibility for teething and gentle play, ideal for infants 6–12 months
• 40–45 Shore A: Slightly firmer, better shape retention for active play, ideal for toddlers 12–36 months

If you require a custom hardness for specific market requirements, we can adjust the formulation to meet your needs within 20–50 Shore A.

Size Specifications

We offer two standard product configurations:

• Standard 6-Shape Sorter (150 mm × 150 mm base): Includes 6 common shapes (circle, square, triangle, rectangle, star, heart) in matching or complementary colors; ideal for general retail.
• Large 9-Shape Sorter (200 mm × 200 mm base): Includes 9 additional shapes for extended learning; ideal for daycare and early education use.

We also support custom size and shape configuration for bulk OEM orders to match specific brand or product requirements.

Material Grade

All our baby shape sorters use 100% food-grade LSR that meets global food contact and infant toy safety standards. We do not offer lower-grade non-food material for this product line, to ensure consistent safety for all customers.

---

Quality Assurance

At 橡楚（湖北）橡胶有限公司, all our LSR products are manufactured under a strict ISO 9001 certified quality management system, from raw material incoming inspection to finished product outgoing testing. For our Food-grade LSR Baby Shape Sorters, we implement the following quality control processes:

1. Raw material inspection: Every batch of LSR raw material is tested for harmful substances (BPA, phthalates, lead, heavy metals) before production.
2. In-process inspection: Dimensional checks, hardness testing, and visual inspection are performed every 2 hours during production to catch defects early.
3. Finished product testing: 100% of finished products undergo visual inspection for burrs, discoloration, and surface defects, plus random batch testing for mechanical performance and harmful substance compliance.
4. All products are tested to meet the requirements of ASTM F963 (US toy safety standard) and EN 71 (EU toy safety standard) for customer export to North America and Europe.

If you have any questions about our Food-grade LSR Baby Shape Sorters or would like to request a sample for testing, please contact us at:

• Phone: +86 18071171144
• Email: churubber@163.com
• Address: No.54, Neihe Alley, Fankou Street, Economic Development Zone, Echeng District, Ezhou City, Hubei Province, P.R.China