Technical Data Sheet — Epoxy-Amine (2K) System

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Product Description

Two-component epoxy-amine coating system designed for industrial protection on properly prepared metal and concrete. Offers strong adhesion, chemical resistance, and toughness after full cure. Suitable for shop/maintenance coating, epoxy primer, and general protective finishing depending on pigmentation and recommended system build.

System Type

Epoxy Primer (2K) — Bisphenol-A epoxy + Polyamide/Amine Adduct

Mixing

Mix ratio: Base : Hardener = 4 : 1 (vol) | 100 : 25 (wt) (typical) • Induction: 10–15 min (if required)

Typical Technical Data (Mixed Material)

Volume solids

~55 ± 3 % (typical)

VOC

Typically < 420 g/L (as supplied)

Specific gravity

~1.30 ± 0.05 (pigmented)

Mix ratio (by volume)

Base : Hardener = 4 : 1

Mix ratio (by weight)

Base : Hardener = 100 : 25 (typical)

Pot life @ 30 °C

~45–60 min (depends on mass & temperature)

Induction time

0–15 min (based on hardener type & site practice)

Recommended DFT / coat

50–100 µm/coat

Recommended system DFT

100–200 µm (typical protection build)

Theoretical coverage*

5.5–11 m²/L @ 50–100 µm DFT

Drying @ 30 °C

Touch: 2–4 h • Recoat: 6–12 h • Full cure: 5–7 days

Service temperature

Up to ~80 °C dry (typical epoxy limitation)

Thinner / Cleaner

Epoxy thinner (ketone/aromatic blend) as recommended

Shelf life

12 months (Base) & 12 months (Hardener) in sealed containers

*Actual coverage varies with profile, porosity, losses, and application method. Typical values are indicative; confirm by site trials.

Components

Component	Typical Description
Part A — Epoxy Base	Pigmented/filled epoxy resin blend (commonly Bisphenol-A epoxy) with additives for flow, wetting, and anti-settling.
Part B — Amine Hardener	Polyamide / amine adduct / cycloaliphatic amine system (selected for pot life, cure speed, and chemical resistance).
Mixed Material	Crosslinked epoxy network after cure; exhibits strong adhesion, hardness development, and resistance to water/chemicals (after full cure).

Surface Preparation

Remove oil/grease by suitable degreasing. Ensure surface is clean and dry.
Steel: abrasive blast to Sa 2½ (ISO 8501-1) / SSPC-SP10; profile 40–75 µm recommended.
Power tool cleaning minimum St 3 (where blasting is not possible) and ensure firm substrate.
Concrete: remove laitance; ensure moisture conditions are acceptable; profile by grinding/shot-blasting as needed.
Dust removal: vacuum/air blow; no loose rust, salts, or contaminants.

Mixing & Application

Step / Method	Details
Mixing order	Pre-mix Part A to uniformity. Add Part B (hardener) in full quantity. Mix 2–3 minutes until homogeneous.
Induction (if used)	Allow 10–15 minutes after mixing before application (especially in cooler conditions or certain adduct hardeners).
Pot life control	Keep mixed paint in shallow trays to reduce exotherm; do not seal mixed material in closed containers.
Brush/Roller	Suitable for stripe coats and small areas. Thin 0–5% if required. Apply evenly to achieve specified DFT.
Conventional spray	Thin 5–15% with epoxy thinner; adjust viscosity to equipment. Use clean, dry compressed air.
Airless spray	Tip 0.015–0.021" • Pressure 1800–2500 psi (as required). Use filters and wet film gauges for control.
Stripe coating	Apply stripe coat on edges, welds, bolts, and sharp corners prior to full coat for better corrosion protection.
Recoat window	Recoat typically 6–12 hours at 30 °C. If exceeded, light abrasion may be needed for intercoat adhesion.

Practical Notes

Avoid application when surface temperature is within 3 °C of dew point. Ensure ventilation during cure. Chemical resistance develops after full cure; avoid early chemical/water exposure.

Recommended Coating System (example)

Surface prep: blast cleaning Sa 2½; profile 40–75 µm
1 coat 2K Epoxy-Amine Primer (DFT 75 µm)
1 coat 2K Epoxy-Amine Intermediate/Topcoat (DFT 75–100 µm) or compatible polyurethane topcoat (as per service need)

Final system selection depends on environment (chemical, marine, atmospheric), substrate, and service temperature.

Handling & Safety

Amine hardeners can be corrosive/sensitizing; avoid skin/eye contact. Use gloves, goggles, and protective clothing.
Provide adequate ventilation; avoid inhalation of vapours/mist. Use appropriate respirators when spraying.
Keep away from heat/sparks/open flame. Observe solvent handling precautions.
In case of contact: rinse with water, seek medical attention as required. Refer to SDS for full guidance.

Amines & Blushing (Humidity Risk)

Under high humidity/low temperature, amine blush may occur on the surface. Ensure conditions are suitable; if blush forms, wash/abrade before recoating.

Quality Control (Suggested)

Monitor WFT/DFT, pot life, mixing ratio, ambient/dew point, adhesion (cross-cut/pull-off), and holiday detection for high builds.

Packaging & Storage

Supplied as two components (Part A + Part B) in matched kits. Typical pack sizes: 5 L, 20 L kits (as agreed). Store in a cool, dry, well-ventilated place away from direct sunlight and ignition sources. Keep containers tightly closed. Do not freeze. Rotate stock on FIFO basis.

Notes & Disclaimer

Values shown are typical and may vary by pigmentation, hardener selection, batch, and application conditions. Always verify suitability by testing on a small area and confirming performance under actual service conditions. This document is provided for guidance only and does not constitute a warranty. For project-specific recommendations, consult your technical representative.