Zuotong Z9288 Epoxy Primer Hardener 2K Polyamide Hardener For Epoxy Primer With High Adhesion And Chemical Resistance

Zuotong Z9288 Epoxy Primer Hardener is a two-component polyamide curing agent designed for Zuotong Z9708 epoxy primer only. It supports chemical crosslinking to form a stable, hard primer film, improving sanding readiness and long-term coating performance in automotive repair workflows.

• System matched for Z9708: reduces mismatch risks that can cause slow cure or unstable film behavior

• Predictable shop timing: controlled pot life and drying schedule for booth planning

• Hardness and strength: helps build a firmer primer layer for sanding and next steps

• Better resistance after cure: improved chemical and solvent resistance for durable service

Two-component polyamide epoxy hardener for a 2K epoxy primer system. Use only with Zuotong Z9708 and the specified thinner.

• Mixing ratio by weight: Primer:Hardener:Thinner = 4:1:1.5 to 2.5

• Activation usable time: 2 hours at 25 °C

• Drying at 25 C: dust-free 30 minutes, polishable 5 hours

• Baking option: air-dry 10 minutes, then bake 30 minutes at max 60 °C

• Professional workflow design for consistent intercoat stability

• Automotive panel repair and spray booth repaint preparation

• Local patching and exposed metal priming

• Full vehicle refinishing where uniform primer cure matters

• Sanding-ready primer stage before intermediate and topcoat steps

Collision repair, refinish centers, and repaint lines that require reliable 2K epoxy primer curing consistency.

Compared with economy hardeners, this system-focused polyamide curing agent helps reduce variability in curing speed, sanding feel, and interlayer bonding stability when used exactly as specified.

1. Confirm compatibility: Z9288 only with Z9708 epoxy primer

2. Weigh components accurately using 4:1:1.5 to 2.5 ratio by weight

3. Mix thoroughly at 25 C and use within 2 hours

4. Spray workflow: self-dry 10 minutes, then bake 30 minutes under 60 °C if required

5. Keep containers sealed after opening and work with proper PPE and ventilation

• 1L can

• Store in a ventilated, dry, normal temperature environment

• After opening, seal tightly to prevent thickening and performance loss

• Zuotong Z9708 Epoxy Primer

• Matched thinner for spray adjustment (within the specified ratio)

1. Can I use Z9288 with 2K clear coat or 2K color? No. Only with Z9708 epoxy primer.

2. What is the mixing ratio? 4:1:1.5 to 2.5 by weight.

3. How long can the mixed material be used? 2 hours at 25 °C.

4. When is it ready for sanding? About 5 hours at 25 °C (polishable).

5. What is the maximum baking temperature? 60 °C.

6. Should I air-dry before baking? Yes, 10 minutes self-dry first.

7. Does it work for spot repairs? Yes, for controlled local refinishing.

8. Where can I get documents? Request TDS and MSDS for the specific lot.

OEM and wholesale supply are available. We can support distributor packaging and branding for qualified orders. Contact us for MOQ and lead time.

Send us your target mixing plan and volume. We will confirm compatibility with Z9708 and provide TDS and pricing for your automotive repair projects.