Epoxy Silicone Heat Resistant Primer
1 PRODUCT DESCRIPTION
This is a high‑solids epoxy‑silicone anti‑corrosive coating.
2 RECOMMENDED USE
For long‑term protection of hot pipelines, exhaust pipes, chimneys and other hot surfaces operating up to 200 °C (instant peak temperature 250 °C).
3 FEATURES
‑ Excellent heat‑humidity resistance. ‑ Excellent adhesion. ‑ Favourable application performance.
4 COMPLIED STANDARDS
Complies with Q/370883SBQ031‑2022 High Temperature Resistant Paint.
5 PHYSICAL PROPERTIES
Item | Parameter |
Color | Neutral grey |
Gloss, GU@60° | No requirement |
Mixing Ratio | Base / Hardener = 7 / 1 (by weight) |
Specific gravity, g/cm³ | 1.51±0.1 |
Volume Solids, % | 72±2% |
Weight Solids, % | 81±2% |
Film thickness | Dry film: 100‑150 microns / coat |
Theoretical Coverage | 0.210 kg/m² at 100 microns dry film |
Temperature Resistance | Long‑term: 200 ℃; Short‑term peak: 250 ℃ |
Practical coverage varies depending on surface condition, ambient environment, application method and other factors.
6 APPLICATION
Item | Details |
Application Temperature | 5℃‑40℃ |
Application Condition | Relative humidity ≤85%. |
Pot life | 6 hrs @5℃; 3 hrs @10℃; 2 hrs @20℃; 1 hr @30℃ |
Application Methods | Airless spray, air spray, brush, roller |
Airless spray | 0.43 mm‑0.53 mm |
Air spray | 2 mm‑3 mm |
Brush / Roller | 5‑10% by volume |
Thinner | Epoxy thinner |
Curing Condition | Bake at 200‑250 ℃ for 1 hour for full cure. |
Drying time & Overcoating interval | • Dry to touch: 24 hrs @5℃; 12 hrs @10℃; 6 hrs @20℃; 4 hrs @30℃ |
Applied substrate | Bare steel |
Coating system | Epoxy topcoat or follow PUNTIUM recommended coating system |
7 SURFACE PREPARATION
‑ Remove salt and other water‑soluble contaminants with fresh water. ‑ Eliminate oil and grease in accordance with SSPC‑SP 1 Solvent Cleaning standard. ‑ Remove rust, mill‑scale and foreign substances completely by abrasive blasting to achieve ISO Sa2 1/2 (SSPC‑SP 10) or higher grade. ‑ Ensure all surfaces to be painted are clean, dry and dust‑free prior to application.
8 STORAGE
Item | Specification |
Storage Condition | Store in dry, cool conditions, and away from sources of heat & ignition. Containers must be kept tightly closed. |
Shelf life | 12 months at 25 ℃. |
9 CAUTIONS
SAFETY PRECAUTIONS
The following measures shall be ensured in all paint applications. ‑ Avoid skin and eye contact. ‑ If paint comes into contact with skin, wash with warm water and/or suitable cleanser. If paint comes into contact with the eyes, flush with copious amount of water and seek immediate medical attention. ‑ Ensure good ventilation. Avoid inhalation of spray mist or vapour. ‑ Application and handling of this product should be in compliance with relevant national regulations. Detailed information is given on SDS.
DISCLAIMER
The information provided in this manual constitutes the most comprehensive and accurate data currently available to us. As the operating conditions of the product are beyond our control, this information does not constitute any warranty and is solely intended to assist the buyer in product selection. Given that our products and manufacturing processes are continuously evolving, this manual will be updated accordingly. All information herein shall be subject to our confirmation. Before using the product, please ensure that you have the latest version of this manual.
PREPARATION DATE: 2019‑10‑13 REVISION DATE: 2026‑02‑04
