Basic Assumptions – Must read

Classroom Repairing Classroom Priming Classroom Painting Classroom Finishing

From start to finish, a guide on basics that must be covered when repairing and painting.

PPG Industries Automotive Refinish group makes these assumptions based on accepted industry practices,
our knowledge, past experience and feedback from our employees and customers. These assumptions are
intended to be used by collision repairers for reference and support documentation to promote a better
understanding of the refinishing process to their customers.

basics

MaxMeyer MultiGrey Concept

Classroom Priming

The MaxMeyer MultiGrey system is a range of grey shades available in the MaxMeyer Primer System, designed to allow you to use the correct grey shade for the colour including MultiGrey filler and wet on wet primer.
The system has been developed to incorporate a range of five shades of grey suitable for use under all covers that can be achieved from just three products white, grey and dark grey. Please click the picture below to read the full guide and use the multigrey identification tool.

 

 

 MMGrey

Reference: http://www.maxmeyerplus.co.uk/

Masking for High Build Primer

Classroom Priming

A MaxMeyer Tutorial on how to mask a vehicle prior to primer application.

 

 

Step 1

Clean the panel with a MaxMeyer degreaser using a spray applicator (only use an applicator for compliant degreasers).

Step 2

Wipe the panel down clean with a quality clean cloth.

Step 3

Back mask the door edge to keep the overspray from the primer out of the shuts.

Step 4

Soft edge roll the masking tape and apply the tape to the sway of the door. This gives a soft edge to the primer when its applied. 

Step 5

Sheet the car over with plastic sheeting. Cut the sheeting around the primed area and mask to the vehicle body.

Step 6

Pul the sheeting tight to the vehicle body. The vehicle is now ready for high build primer.

Reference: http://www.maxmeyerplus.co.uk

High Build Primer Sanding

Classroom Priming

MaxMeyer tutorial on sanding primer and panels for topcoat application.

 

 

Step 1

Using guide coat powder, apply coats to the panels for the sanding of the primer to enable the repair of any imperfections to be easily seen.

Step 2

Using a P320 grit strip with a dust extracted block, connect it to a dust extraction unit.

Step 3

Block sand the repairs to required profile, removing any imperfections as well.

Step 4

Once the repair has been sanded to the required profile, apply the guide coat powder to the panels for the next sanding process of the MaxMeyer Primer. Again to let you see the scratches from the block sanding and any imperfections left.

Step 5

Using a quality DA sander with a P500 DA Disc attached to a dust extraction unit, sand the panels ready for the application of the topcoat.

Step 6

For the blend panels attach a P1000 film disc and sand the whole of the blend panel.

Step 7

Then blow the panels dry removing any surface dust from the panels.

Step 8

Apply MaxMeyer pre-cleaner with a spray applicator to the panels and wipe dry with a quality cloth. The panels are now ready for masking for topcoat.

Reference: http://www.maxmeyerplus.co.uk

High Build Primer Application

Classroom Priming

MaxMeyer tutorial on applying High Build Primer.

 

 

Step 1 Pre-Clean

Pre-Clean the panels to be primed with a MaxMeyer waterborne pre-cleaner. Apply the waterborne pre-cleaner to the panels with the spray applicator.

After applying the waterborne pre-cleaner, wipe the panel dry by using a quality sprit wipe or precleaning cloth. This will remove dirt, grime, dust and soluble salts from the panels leaving them clean for the primer to be applied.

Step 2 Gun Set up

For the correct and best application of the MaxMeyer High Build Primer you need to ensure the spraygun is set up correctly to get optimum performance out of the product. We would recommend a 1.6mm tip size for the MaxMeyer High Build Primer. 

Using a gun gauge set the spraygun to the spraygun manufacturers recommendations. Place a piece of paper onto a panel onto a stand and number across the top from 1/2 through to 4 at 1/2 increments. 

Screw the fluid delivery on the spraygun fully in and then turn out 1/2 a turn. Hold the spraygun approximately5-6 inches from the paper infront of the 1/2 increment. 

Pull the spraygun trigger for approximately 1/2 a second, this will give you a fan pattern.

Open the fluid delivery nob another 1/2 a turn and move to the next increment and pull the trigger. Continue this right the way through to 4 turns. The aim is to get maximum pattern size with minimum fluid delivery so it gives you maximum control of the spraygun and product.

This is three turns in this video, so screw the fluid delivery fully in and then screw out three full turns.

Then spray on the paper for a feel of what it will be like when applying the primer to the panel. The spraygun is now set up correctly for the high build primer application.

For Whole Panel Application

Step 1 – Apply etch primer

Blow and tac the panel clean. Apply a first coat of etch primer and leave to flash for 10 minutes. Apply a second coat of etch primer then leave to fully flash for another 10 minutes.

Blow and tac rag the bonnet removing any etch primer overspray. The etch primer overspray can be seen on the tac rag.

Step 2 – Apply High Build Primer

Apply one fully coalesce wet coat to the whole panel. Leave to flash off for 5 minutes then apply the second full coat, again leave to flash off for 5 minutes then apply the third and final coat of High Build Primer.

When completed, refer to the technical data sheet of baking temperatures and times or air dry cure times.

For Part Panel Application

Step 1 – Apply etch primer

Apply first coat of etch primer and leave to flash off for ten minutes, apply second coat of etch primer then leave to fully flash off for another ten minutes.

Step 2 – Apply High Build Primer

Blow and tac the panel clean. Apply first coalesce wet coat to the furthest points then flash off for 5 minutes. Apply the second fully coalesce wet coat inside the first coat then flash off for 5 minutes. Apply the third fully coalesce wet coat inside the second coat and flash off for 5 minutes.

When completed refer to the technical data sheet for baking temperature and cure times, infrared cure times or air dry cure times.

Reference: http://www.maxmeyerplus.co.uk