TYPICAL USES

Coating all kinds of wirework:

Refrigerator shelves and baskets, racks, shelving,

display stands, etc.

GUIDE TO TYPICAL COATING CONDITIONS

Recommended Pre-treatment:

For mild steel, ensure metal is clean by thorough degreasing and removal of mill scale.

Batch Operation:

Metal preheat temperature 300°C - 400°C, depending on metal thickness. Dip for 3-5 seconds. A post-heat cycle at 200°C may be required to develop fully the surface finish on thin items.

Automatic Coating Plant:

Pre-heat oven 360 - 380°C for 2 to 4 minutes

Dip 3 - 5 secs

Post-heat oven 180 - 220°C for 2 to 4 minutes

Water Quench Optional

The process temperatures used should only be the minimum to achieve an acceptable surface finish. Overheating may cause the coating to discolour later in storage or in service.

Thicknesses outside the recommended range may be detrimental to the properties of the coating.

For typical properties of the coating see overleaf.

HEALTH AND SAFETY

Plascoat LDPE is supplied as a finely divided powder. Whilst there are no known health hazards associated with LDPE, normal handling precautions for dealing with fine organic powders should be taken - i.e. excessive dust generation and inhaling of the powder should be avoided. Facilities may be required for removing excess dust from the working area during the coating of certain difficult items.

As with all polymeric powders, the material can ignite if brought into contact with a high temperature source or ignition - particularly in the fluidised condition.

Reference should be made to Plascoat Health and Safety Data Sheet HS 101, available on request.

Should the coating be required for contact with food or potable water, further details should be obtained from Plascoat.

TYPICAL PROPERTIES OF THE POWDER

TYPICAL PROPERTIES OF THE MATERIAL

*These values may vary from colour to colour

STORAGE

Stored in a clean dry area at 10-30°C and out of sunlight, the material should not deteriorate. However, in the interest of good housekeeping, old stocks should be used first. 

To convert from traditional polyethylene powders to NG30 and maximise the benefits
 

The coating of refrigerator shelves in Plascoat polyethylenes

Pinholes on wirework items - their causes and possible solutions
 

Blower requirements for fluid bed coating

The coverage of white polyethylene on wire

Recommended Coating Thickness

300 - 800 microns

Appearance

Smooth/Glossy

Gloss

ISO 2813

55

Impact Strength

Gardner (drop weight) ISO 6272

Direct 23°C

2.0 Joules

Abrasion

Taber ASTM D4060/84

H18, 500g load, 1000 cycles

80 mg weight loss

Chemical Resistance*

- Dilute Acids 60°C

- Dilute Alkali 60°C

- Salts (except peroxides) 60°C

- Solvents 23°C

Fair

Fair

Fair

Poor

Safe Working Temperature

(Continuous in air)

60°C max

Plascoat is committed to the manufacture and supply of a wide range of thermoplastic coating powders. This service is backed by the unrivalled experience of over 50 years of powder coating application.

With a policy of continuous improvement to its range of products, Plascoat reserves the right to alter or amend any item. Stringent quality control procedures are carried out at every relevant stage of manufacture and Plascoat operates a quality management system approved by BSI in accordance with ISO 9001:2000.

Plascoat is a subsidiary member of the IPT Group of companies.

Plascoat is a UK registered trade name.

It should be appreciated that the information given here is, to the best of our knowledge, true and accurate. However, since conditions under which our materials and equipment may be used are beyond our control, recommendations are made without warranty or guarantee.