MADHUR ENTERPRISES

 
 
EXTRACTS OF TESTIMONIALS
 

(1) Phoenix Specialty Coatings
 

Professional Powdercoating for theAutomotive and Motorcycle Enthusiast
157 Kimery Store Road,Greenfield, Tennessee 38230, USA, 731/613-9192

 
 

The following evaluation comprises my report concerning Liquiguard PC for base coat use on various pieces of new aluminium and used steel stock procured by my company in advance of routine powder coating.

All metal samples were initially outgassed and and then prepared and powder coated under the same stringent conditions including powder mill thickness of 0.03 mils and similar placement of the same part in the curing oven, in order to compare them as closely as possible.

 
Metal prep-use steel : Media blasting, soap/water, acetone
Metal prep-use new aluminium         : Soap/water, acetone
Outgassing temperature     : 425 degrees
Outgassing duration            : 60 minutes
Powder gun voltage setting : ± 5,000 kv
Relative humidity                : 33%
Ambient temperature         : 56º
LiquiGuard dry/set up time : 15 Minutes
Oven temperature – flow out : 425º (7 Minutes)
Oven temperature – curing : 400º (20 Minutes)

 
 
Following the initial outgassing and cool-down period, LiquiGuard PC was sprayed onto the samples using a commercial spray gun, lightly blown dry with compressed air, and allowed to set up undisturbed for fifteen minutes.
 
Substrate Part Identification Color
Steel       Automotive rear end bracket Plum Cast
Aluminium U-Channel Plum Cast
Aluminium U-Channel Chrysler Orange
Aluminium Test Panel Ford Light Blue
Aluminium Ford Automotive bracket   Ford Light Blue
     
 

Although the samples would initially somewhat repel powder adhesion, once a very light layer of powder was applied, it produced very nice adhesion results, attracted the powder extremely well, and seemed to be smooth and even.

The most impressive part of my evaluation pertains to the total absence of any outgassing whatsoever during the curing cycle. Even on the thinnest gauge aluminium I could find, there was no outgassing at all, as is typical in the industry, and as all powder coaters have come to expect when dealing with aluminium. I am extremely impressed with and excited by the results I received using LiquiGuard PC on aluminium. It may well be every professional powder coater’s “dream products”. The sample coated with LiquiGuard PC are smooth, orange peel is minimal, and produce superior aesthetic results to the trained eye.

Thank you very much for this latest opportunity to assist your company with its testing and product development.

Signed /- Leanna Johnson, For PHOENIX SPECIALTY COATINGS 

 
(2) Superior Powder Coating
 
Inc. 9031 Navarre Pkwy, Navarre, FL 32566 USA
 

This product (Liquiguard®) has performed over and beyond the expected results that the representative at Liquiguard stated to be true. I self tested LG and LG/AL by submerging substrates steel, and aluminium into the Gulf of Mexico steel for 5 months, aluminium for 6 weeks (less tendency for corrosion) and found no corrosion whatsoever.

 

Signed /-Tim, For Super Powder Coating Inc.
 
(3) F. TODIWALA
 

LTC-VJTI (Diploma in Oil, Paint & Chemical)
[M/4, No. 42, Cama Park, Cama Road, Andheri (W),
 Mumbai – 400 058.     Tel. : 65232290
 
IDENTIFICATION : To evaluate use of ‘Liquiguard’ as alternative for the   ‘zinc  phosphate’ pre-treatment to POWDER COATING
 

TEST METHOD : One mild steel iron section was rubbed with ‘Liquiguard’   solution and after powder coating subjected to ‘Salt Spray   Test’   and observation recorded on daily basis. The sample showed   minor spots of rust after 128 hours, however no blisters or peeling   was observed. The test were continued and even after 592 hours   of ‘Salt Spray Test’ no further deterioration had taken place. At   this point the testing was halted.

 

CONCLUSION : In conclusion it can be said that ‘Liquiguard’ has excellent anti-  rust and strong bonding properties. The use of ‘Liquiguard’   would be most beneficial in various oversize and other intricate   objects where one would encounter the problem of having to create a big bath for the zinc phosphate dip process or encounter   the problem of de-rusting the hard to reach rust spots. Further, use   of ‘Liquiguard’ reduces the entire work flow from the seven tank process required for ‘zinc phosphating’ to just two stage process   namely : a) cleaning of the surface area and b) coating of   ‘Liquiguard’. The other add on benefits being that unlike zinc phosphate coated surface that need to be powder coated within 8-  10 hours of zinc phosphating no such restriction applies to   Liquiguard coated surfaces. Further, one is also spared the hassle   of effluent treatment when using ‘Liquiguard’ as there is no   residue or effluent to be disposed off. 

Signed /- F. TODIWALA