MADHUR ENTERPRISES

 
 
Comparative Chart for Liquiguard PC with Phosphating before Powder Coating
 
 
Sr. No.  
Liquiguard PC
 
Phosphating before Powder Coating
 
           
1.  
It is the Pre-treatment process creating an innovative coating of Acrylic Polymer on the base metal to be Powder coated for creating the bond between base metal & the powder.
 
It is the Pre-treatment process for creation of Phosphate coating on the base metal to be powder coated for creating the bond between base metal & the powder.
 
           
2.  
Process consist of applying Liquiguard to the surface by Dipping  / Spraying / or application using sponge. Only in certain case degreasing & de-rusting is required.
 
Process Consists of series of steps namely : De-greasing, De-rusting, Phosphating, Passivation usually called as seven tank process.
 
           
3.  
Process time including curing time is 15 minutes. Saves process time. Air drying is workable. Forced drying is optional.
  Process time is usually 20-30 minutes plus forced drying normally needed.  
           
4.   Products processed using Liquiguard can be taken up for coating even after weeks.  
Processed product has to be taken up for coating within hours or re-treatment required.
 
           
5.   No chemist required for checking the strength of the chemical. Liquiguard is ready to use. No addition except to maintain level.    
Constant monitoring of the chemicals is must to ensure good quality. Requires frequent analysis & additions.
 
           
6.  
Liquiguard has a long shelf life and does not need to be re-charged as its efficacy remains intact.
 
Most of the chemicals used in the process has expiry date & has to be utilised within the said period.  
 
           
7.  
Liquiguard is a neutral product. (Non Acidic & Non Alkali) Also non hazardous, non toxic, non flammable.
 
Most of the chemicals used in the process are either acidic or alkaline based.
 
           
8.  
No Effluent treatment required as there is no disposal. You replenish as you consume. No sludge formation.
  Effluent treatment required. Disposal is a problem, particularly together with the sludge.  
           
9.   Object size is not a problem for Pre-treatment. Big objects can be sprayed.  
Larger objects cannot be easily Pre-treated using this process.
 
           
10.   Saves investment on tanks / space & time.   Larger space / tanks / time required.  
           
11.   Common for all kinds of base metals. (GI/MS/Alu./SS/casting etc.)  
Process & chemicals changes for different kinds of base metals to be powder coated.
 
           
12.  

Passes all the necessary tests after powder coating like cross hatch, impact, flexibility, MEK rub, humidity, pencil hardness & salt spray test.

Also protects form corrosion, moisture, oxidation & UV rays.
  Passes all the necessary tests after powder coating like cross hatch, impact, flexibility, MEK rub, humidity pencil hardness & salt spray test.