HTV/HCR Silicone Rubber

 

General-Purpose Silicone Rubber

 

Looking for reliable silicone performance without complex specifications? This highly versatile all-round material delivers superior physical, mechanical, and temperature-resistant properties (-60°C to 200°C), along with exceptional aging resistance.

Ideal for compression molding and extrusion, post-curing is suggested to optimize its final properties.

Ready to learn more? Get in touch.

Explore our full portfolio of HTV silicones, such as high-tear-strength and transparent liquid silicone options.

 

General-Purpose Molding Silicone Rubber

 

 

  • Excellent resilience & processability
  • RoHS, REACH, FDA compliant
  • For buttons, seals & standard components
Key Difference: Precipitated silicone = cost-effective general use; Fumed silicone high transparency & strength for premium applications

 

 

HL-600 Series (Precipitated)

 

Brand Name:

HL

Hardness:

30-80(Shorea)

Country of Origin:

Guangdong, China

China Certificate:

ISO9001

Processing method:

Molding

Package:

20kg/Carton

Transport Details:

By sea

Delivery time:

within 3-7days

 

Application: ordinary buttons, seals, and other conventional strength products.Key Features: good resilience, excellent processability, pass ROHS, REACH, FDA.Test: 50%DBPMH, add1%, 175℃×5min×15Mpa.

 

Typical Characteristics of HL-600 Series (Precipitated)

 

Pertormance 630A 640A 650A 660A 670A 680A
Before Vulcanization Appearance Milky White Milky White Milky White Milky White Milky White Milky White
Translucent Translucent Translucent Translucent Translucent Translucent
Specific Gravity (25℃) (±0.03) 1.12 1.14 1.16 1.18 1.2 1.22
Williams Plasticity (±20) 150 170 190 240 280 300
Vulcanizing Agent Name C-14 C-14 C-14 C-14 C-14
Dosage (phr) 1.5 1.5 1.5 1.5 1.5 1.5
After Vulcanization Hardness (Shore A) (±3) 30 40 50 60 70 80
Tensile Strength / MPa (≥) 6 7 7.5 7 6.5 6
Elongation at Break / % (≥) 700 550 500 380 300 200
Tear Strength / KN/m (≥) 15 16 17 16 15 12
Resilience / % (≥) 45 48 50 45 40 38

 

HL-5300 Series(Fumed)

 

Brand Name:

HL

Hardness:

30-80 (Shorea)

Country of Origin:

Guangdong, China

Certificate:

ISO9001

Processing method:

Molding

Package:

20kg/Carton

Transport Details:

By sea

Delivery time:

within 3-7days

 

Application: all kinds of sheath, kitchenware, purse, watchband, and other conventional products.Key Features: fast curing, high strength, excellent processability, pass ROHS, REACH, LFGB.Test: 50%DBPMH, add1%, 175℃×5min×15Mpa.

 

Typical Characteristics of HL-5300 Series(Fumed)

 

Performance 5330 5340 5350 5360 5370 5380
Before Vulcanization Appearance Translucent Translucent Translucent Translucent Translucent Translucent
Specific Gravity (25℃) (±0.05) 1.11 1.13 1.16 1.18 1.21 1.23
Williams Plasticity (after re-milling for 10 min) 130 160 200 220 270 300
Vulcanizing Agent Name DCPB / Platinum DCPB / Platinum DCPB / Platinum DCPB / Platinum DCPB / Platinum DCPB / Platinum
After Vulcanization   Linear Shrinkage / % 3.3 3.2 3 2.9 2.8 2.7
180℃ Hardness (Shore A) (±3) 30 40 50 60 70 80
15MPa Tensile Strength / MPa (≥) 7.5 8 8.5 8.5 8 8
3Min Elongation at Break / % (≥) 550 500 400 300 200 150
  Tear Strength / KN/m (≥) 18 25 25 20 20 18
Test Conditions for Test Sheet: 175℃ × 5 min

 

 

 

 

LIQUID SILICONE RUBBER

 

 

Clear Liquid Silicone Rubber

 

The HL - 9960 series of clear liquid silicone rubbers stand out with their high transparency, outstanding mechanical properties, and short curing time. When the products made from these rubbers come into contact with food, a post - cure process at 200° C for 4 hours is required.

HL Silicones is committed to offering you top - notch silicone rubber products right here in China. We take pride in the quality of our HL - U9960 series and other silicone rubber offerings, ensuring that they meet and exceed your expectations in terms of performance and safety, especially when it comes to food - contact applications.

 

Features of Clear Liquid Silicone Rubber

 

Feature: high transparency, excellent physical properties within clear liquid silicone/ rubber, meet fda 21cfr 177.2600

Transparent Liquid Silicone Rubber Application: Gasket, grommet, Infant products, Divers' masks, and accessories.

 

Typical Characteristics

 

surveillance project test method unit HL-9960-25 HL-9960-30 HL-9960-40 HL-9960-45
surface visualization - transparent transparent transparent transparent
hardness DIN ISO 48-4 Shore A 26 30 40 45
density DIN ISO 2781 g/cm3 1.1 1.105 1.11 1.11
tensile strength DIN ISO 37 MPa 8.5 9 10.5 10.5
elongation at break DIN ISO 37 % 750 690 620 550
tear strength DIN ISO 34-1 kN/m 17.5 18.7 22.5 25.7
pellucidity DIN EN ISO 13468 % 91.2 91.3 91.3 91.3
viscosity DIN ISO 3219 mPa.s 600000 700000 1000000 1100000

 

surveillance project test method unit HL-9960-50 HL-9960-55 HL-9960-60 HL-9960-70
surface visualization - transparent transparent transparent transparent
hardness DIN ISO 48-4 Shore A 50 55 60 70
density DIN ISO 2781 g/cm3 1.115 1.12 1.12 1.125
tensile strength DIN ISO 37 MPa 10.5 10.5 10.5 11
elongation at break DIN ISO 37 % 550 550 450 350
tear strength DIN ISO 34-1 kN/m 35.4 31.5 32.4 37.6
viscosity DIN ISO 3219 mPa.s 1200000 1300000 1400000 1500000