Self-Curing | Unified Anti-Corrosion

Self-Curing Elastic Anti-Corrosion Material

GDM

Self-curing elastic anti-corrosion material is an elastic coating and sealing compound based on organic silicone resin as the main component, prepared by adding other active additives. Currently, there are two types available:
（1）GDM-T self-curing elastic anti-corrosion adhesive
（2）GDM-G self-curing elastic sealant.

Upon contact with air, the adhesive undergoes a cross-linking reaction with the moisture in the air, gradually curing from the surface to the inside, forming an elastic body that provides anti-corrosion protection.

It can be applied on various surfaces, both horizontal and vertical, to form a uniformly thick coating. Once fully cured, the coating becomes dense and elastic, exhibiting excellent performance in terms of weather resistance, water resistance, salt spray resistance, UV resistance, etc.

Product Features

Appearance

(GDM-T) Uncured, semi-flowable paste, color can be adjusted as needed.

(GDM-G) Uncured, non-flowable paste, color can be adjusted as needed.

Composition

(GDM-T) Single component, solvent-free, no mixing required, can be brush-applied or poured.

(GDM-G) Single component, no mixing required, can be scrape-applied or poured.

Curing Characteristic

Curing is initiated by moisture in the air, followed by curing from the surface to the inside.

Construction Temperature

5 ~ 40°C

Temperature Resistance Range

-50 ~ 120°C (Long-term)

Specifications

PROPERTY	PERFORMANCE		TEST METHOD
	GDM-T	GDM-G
Pre-Curing
Color	Black, White, Gray (custom made)	Black, White, Gray (custom made)	Visual
Viscosity (25° C)	10 MPa·s	Paste	ASTM D1084-16
Density (25° C)	1.5g/cm³	1.5 g/cm³	ASTM D792-20
Tack-Free Time (25° C, 55%RH)	90 min	20 min	ASTM D2377-14
Post-Curing
Hardness	45 Shore A	55 Shore A	ASTM D2200
Elongation	270 %	290%	ASTM D638-14
Tensile Strength	1.8 MPa	2.1 MPa	ASTM D638-14
Shear Strength (Al-Al)	1.7 MPa	1.9 MPa	ASTM D1002-10
Dielectric Strength (25° C)	18 kV/mm	19 kV/mm	ASTM D149-20

Features Comparison

TYPE	FEATURE
GDM-T	Good flowability, easy to apply
GDM-G	High viscosity, no excessive flow, suitable for filling applications

After curing, the material exhibits excellent elasticity, low shrinkage, and can withstand temperature changes without cracking, maintaining strong adhesion.
The cured surface is smooth, glossy, and has good flame retardancy. It demonstrates outstanding UV resistance, maintaining elasticity and adhesion even in harsh natural environments.
The material has excellent waterproof sealing properties and adhesion, suitable for various substrate coatings.
Once fully cured, it maintains good elasticity within a temperature range of -50°C to 120°C.

Packaging and Storage

Common Specifications: 400ml per unit (20 units per box), customizable packaging
Storage Conditions: Store in a sealed condition at room temperature. Can be transported and stored as a non-hazardous substance.
Shelf Life: Can be stored for 6 months at room temperature.

Before GDM Application

After GDM Application