VeriCoating
EnglishFavorites

Agricultural Machinery

Protection against humidity, agrochemicals and soil abrasion

Agricultural machinery includes tractors, harvesters, seeders and other field equipment. Long-term exposure to high humidity, fertilisers, pesticides, ultraviolet radiation and soil abrasion requires weatherability, chemical resistance, adhesion and corrosion protection.

Veri Coating offers smooth pure epoxy and high-durable polyester-HAA powder coatings with GT0 adhesion, at least 50% gloss retention after 1,000 hours of xenon-arc exposure, and strong salt-spray and condensation-water resistance.

Application notes: Castings should be preheated to release internal moisture and reduce bubbling, with a recommended film thickness of 60-80 um.

Typical Powder Coating Challenges for Agricultural Machinery

Balancing Hardness, Flexibility and a High-Gloss FinishHigh-gloss coatings can crack unless hardness, flexibility and flow are balanced.

Balancing Hardness, Flexibility and a High-Gloss Finish

Agricultural-machinery enclosures require high gloss and a smooth appearance while withstanding vibration, assembly deformation, stone impact and tool knocks. Excessive hardness increases brittle-cracking risk, while excessive toughening can reduce hardness and scratch resistance and impair high-gloss flow.

Formulation Design

  1. Use a weatherable polyester system that combines flow and flexibility, balancing hardness and toughness through resin Tg, cure reaction and filler loading.
  2. Control the particle size and loading of hardening fillers to avoid impairing flow, gloss and impact performance.

Process Control

  1. Maintain uniform film thickness and avoid local heavy build that causes sagging or internal stress.
  2. Confirm degree of cure from part temperature; undercure affects hardness, adhesion and chemical resistance simultaneously.
  3. Validate actual parts at stamped, bent or assembly-deformed areas.
Validation Focus
  • 60° gloss and flow
  • Pencil hardness
  • Impact, bend and cupping
  • Adhesion after assembly deformation
Food or Potable-Water Contact ComplianceFood-contact applications require clearly defined regulations and migration testing.

Food or Potable-Water Contact Compliance

Some agricultural equipment may contact grain, feed or potable water, but applicable regulations vary by country, contact medium and service temperature. REACH or RoHS compliance alone does not demonstrate food-contact safety.

Formulation Design

  1. Select raw materials around the restricted-substance and migration limits of the target regulations, then confirm compliance for the final colour, film thickness and cure conditions.
  2. Where BPA-free status, low heavy metals or PFAS restrictions are required, define them as separate project specifications rather than assuming them from a general TDS.

Process Control

  1. Define the contact medium, temperature, duration, country and applicable standard at project initiation.
  2. Prepare test panels with the final substrate, pretreatment and cure conditions, and commission an accredited laboratory for migration or hygienic-safety testing.
  3. Establish traceability between raw-material batches, production batches and test reports.
Validation Focus
  • Target-regulation compliance documents
  • Specific/overall migration testing
  • Heavy metals or restricted substances
  • Degree of cure and batch traceability