Flame retardant powder coating is often required to protect a wide range of products of both flammable and nonflammable against fire. It is an oldest, most efficient, and easiest method to apply any surface without modifying the intrinsic properties of materials. Moreover, the initial phase of fire always occurs on the surface by ignition, and hence, it is important to concentrate on the surface protection of a material. Being an organic nature of conventional surface coating will burn easily and generate smoke and toxic fumes, which may not be suitable for application where fire protection or fire prevention is required. Reaction-to-fire and/or resistance-to-fire are to be considered for assessing both flammable and non-flammable material by using fire retardant and fire resistant or fire protective coatings. The degree of fire retardation mainly depends on the coating thickness, substrates, and efficiency of formulations.
2.Feature:
GLOSS AND COLOR RANGE
Gloss levels range from 10% to 90% at 60º .
Full color range is available.
APPLICATION SCHEDULE
Applied by electrostatic spraying gun that can provide negative tension of 60-80 kV.
Curing schedule :10~15 minutes at 180ºC~ 200ºC (metal temperature )
Optimal film thickness : 60 -90 um
POWDERPROPERTIES
Specific gravity : 1.25 - 1.75 (depend on colors)
Particle size distribution(Laser Particle size analyser) :Less than 5% above 100 um 50 - 65% above 32 um :
Average particle size: 35 - 45um COATING PROPERTIES
The following are typical properties determined on 0.8 mm gauge degreased galvanised steel .
Film thickness (ISO 2178) : 60 - 90 µm
flame retardant rating HB ~ V-0
Gloss (ISO 2813, 60º) : > 5% ~ 90%
Adhesion (ISO 2409) : GT= 0
Pencil hardness(ASTM D3363 ) : 2H
Direct and reverse impact(ASTM D2794) : > 50kg.cm
Salt spray Resistance ( ASTM B117, 1000hrs) (Maximum undercutting ,1 mm ):No blistering
Humidity Resistance (ASTM D2247,800 hrs): No blistering or loss of adhesion
Chemical Resistance:Resistant to some common inorganic acids, bases and salts, organic acids and solvents.
SUBSTRATES AND PRE-TREATMENT In order to obtain optimal anti-corrosion properties, it is recommended to apply a chemical pretreatmentprior to powder coating application.
Ferrous metals(cold rolled steel, cast iron etc.): Iron or zinc phosphatation
Zinc surfaces(galvanized steel, zinc alloy): Chromatinion or zinc phosphatation
Aluminum alloys : Chromatation
STORAGE
Should be stored under dry conditions with good ventilation at a temperature not exceeding28 C.
Storage period recommended should not exceed 12 months,in case exceeding 12 months without affecting their free flowing properties, the powder will still have optimal characteristics.
Should be protected from excessive heat,humidity,water and contamination with foreign materials such as powder, dust, dirt, etc.
Any leftover powder should be kept in an appropriate area that is cool and dry. Do not expose to the air too long as the powder properties may deteriorate with the moisture.
12. FAQ
(1) What powder we can manufacture?
We can do almost all the RAL and PANTONE colors;
We can do almost all the finish powder, like smooth, texture, structure etc.
We can do a lot of special powders, like conductive powder, Insulation powder, Soft touch powder, Anti-graffitti powder, Zinc-Rich powder, super thin powder etc.
(2) Our Packing: 25kg / box
Box Size: 38 * 27 * 33cm (L * W * H)
Pallet size: 1.1 * 1.16m Material: Plywood
(3) Our MOQ: Usually 200kg/ color
(4) Delivery Time: Usually send out the goods within 15 days.
(5) Can we get some samples from you?
Yes, we can supply you 1-2 kg powder samples for your testing, but we need you to pay the freight firstly.
(6) How can we get the quotation?
Please send us your technical data or let us know your requirement as following: Color, Powder Type, Gloss, Surface and other performance requirements
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