Base Coat Silicone for Synthetic Leather Coating 1145B-8G

Product Overview

1145B-8G is a base coat silicone designed for synthetic leather coating and substrate bonding. It provides excellent tensile performance and strong bonding strength, while delivering a flat and stable coating film that helps reduce edge curling during processing. The cured layer is environmentally friendly and features a low-odor formulation.

Key Features

• Good tensile performance for stable base-layer support
• Flat coating film to help reduce curling / edge lift
• Stronger bonding strength for improved lamination stability
• Eco-friendly, low odor / non-irritating smell

Typical Applications

Designed for base-layer coating and bonding on substrates such as:

• Microfiber (superfiber) base fabrics
• Base cloth / textile substrates for synthetic leather
• Coated fabrics / imitation leather structures
• Substrates with relatively high oil content or difficult bonding conditions

Technical Data (Typical)

• Appearance: Semi-transparent
• Viscosity (mPa·s): 250,000
• Hardness (Shore A): 42
• Tensile Strength (MPa): 6
• Elongation (%): 350
• Tear Strength (N/mm): 22

Mixing & Application (Typical)

• System: Two-component silicone
• Mixing ratio: Curing Agent 02 : 1145B-8G = 2 : 100
• Mix thoroughly, then vacuum deaeration is recommended before use to remove bubbles
• Apply by coating methods suitable to your line (knife coating / roll coating, etc.)

Storage & Shelf Life

• Store in a cool, ventilated environment
• Shelf life: 12 months from the production date (unopened, properly stored)

Handling Notes

• Avoid contact with substances that may inhibit curing, such as amines, acids/alkalis, sulfur, phosphorus, tin compounds, and other catalyst-like materials
• If mixed material is not used up, seal tightly for storage
• In case of eye contact, rinse with clean water promptly and seek medical attention if necessary
• After full curing, the product is generally stable; normal skin contact should not cause chemical irritation

Technical Support

We provide system matching and process recommendations based on your substrate, coating method, and performance requirements. Contact our team for grade selection and production trial support.