Product Overview

Solid LS-60 coupling agent is developed under the guidance of renowned chemical experts. Since launched, it has played a vital role in powder materials and been widely acclaimed in the industry. It features wide applicability, strong surface activation, high whiteness, odorlessness and excellent dispersibility.

Main Technical Specifications

Appearance: White or light yellow waxy solid
Melting temperature: 50℃
Thermal decomposition temperature: ≥300℃

Application Scope

Suitable for surface treatment of various powders and fillers, including:

Light/heavy calcium carbonate, kaolin, mica powder, wollastonite, talc powder
Pigments
Also applicable for direct addition in plastics, rubber, coatings, inks and adhesives

Features & Benefits

Good compatibility and synergistic stability
Excellent lubricity
Wide application range
Easy to use
Low cost

Usage & Dosage

A. Pre-treatment Method

Preheat powder/filler in a high-speed mixer to about 110℃ to remove moisture.
Add metered coupling agent and process for 8–10 minutes before discharging.
Other additives may be added 4 minutes after activation with the coupling agent.
Do not use with other dispersants simultaneously.

B. Direct Addition Method

Add directly during high-speed mixing (same method as above).

Add carboxyl/hydroxyl-containing components (stearic acid, organic alcohols, etc.) 3–4 minutes after activation.

The pre-treatment method under high-speed mixing yields the best results.

Recommended Dosage

Ordinary fillers: 0.8%–1.0% of filler weight
Film masterbatch: 1.5%–2.0% of filler weight
Powder materials: 1.0%–1.5% of powder weight
Color masterbatch & cable compounds: 1.5%–3.0% of filler weight
PVC products: 1.0%–1.5% of filler weight (doubles filler loading, improves mechanical properties, lowers processing temperature)
Rigid PVC products: 0.5%–1.0% of filler weight (improves corner welding strength, cold impact strength and flow processability)
Powder coatings & inks: 0.7%–1.5%

Precautions

For composites using PE, PP, ABS, PC and other granular resins, first make masterbatch, then blend with resins.
Keep the coupling agent dry, fireproof and moisture-proof. Reseal promptly after opening.
Use within the best shelf life (6 months) from production date.