Screen Preparation

Products Overview

Screen Colour Systems has two screen cleaning ranges, the Aquarius and Industrial ranges. The Aquarius products are safer to use and are less polluting to the environment. All the products in this range have their code number prefaced with the code letters AQ. The second group, must be handled with caution and can be polluting to the environment. This group of products is for the use of experienced screen printers who know how to handle these types of products.

Products For Screen Preparation

Basic Principles Of Screen Preparation

Screen cleaning and preparation can be divided into four steps. In the case of a new mesh you would only need the final stage, mesh degreasing. The following steps should produce a mesh that is free of any contaminates and ready for the reapplication of your stencil medium. When you have finished your print run you should always clean all ink from the mesh and wash with the appropriate cleaner. This will help prevent ghost images in the future. When you are ready to reclaim mesh and remove the stencil, follow the steps below.

Use Of High Pressure Washer And Screen Rinsing

Always rinse before high pressure washing the screen. The reason for the rinse phase, it helps prevent any of the stencil and cleaning products getting airborne when you use the high pressure washer. When using the high pressure washer always start at the bottom of the mesh, work the jet across the mesh then up and across again. Working the washer head across and up the mesh is the most effective way of removing stains. Then repeat the process on the other side of the screen starting at the bottom as before.

Step 1

Ink Cleaning

Step One should always be carried out when you stop printing. Scrape all wet ink from frame. If appropriate, add ink to original container else dispose of ink in waste container. Now wash ink from screen using the recommended cleaner. Place screen on absorbent paper. Wash screen with rag on the squeegee side. Be very careful when cleaning substrate side of the screen as this can be very delicate and easy to damage stencil.

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Aquarius Product

AQ 950 Bio-Screen
Environmental Friendly
Non Flammable
Slow Drying

Industrial Product

GT 870 General Purpose Cleaner
Strong Solvent
Flammable (Class 3)
Fast Drying

Step 2

Stencil Removal

We have two stencil stripping products. Strip n Clean is a liquid concentrate and can be diluted with water, it can also be used in a dip tank. The PhotoSolve Gel is used straight from the pot. This is the method for using PhotoSolve Gel to remove stencils from the screen mesh. Remove all blocking tape from screen. The Gel is applied using either brush or pad onto both sides of the cleaned screen. The gel needs to be agitated on the screen, this will help it penetrate the old stencil medium. The gel should never be allowed to dry, this will make stencil reclaim more difficult. After five to ten minutes agitate the old stencil and then rinse. Now blast with a high pressure washer to remove old image from the mesh. If any old stencil material remains repeat above procedure. The advantage of the gel is its ability to remain on the mesh dissolving the old stencil medium without running to the bottom of the frame.

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Aquarius Product

PhotoSolve Gel (AQ 1020)
Gel Stays on Mesh
Easy Application
Can be used with Bio-Screen

Aquarius Product

Strip n Clean (AQ 1053)
Dip Tanks dilution up to 10 to 1
Direct Application
Same Method As Photosolve Gel AQ 1020
Recommended Dilution up to 5 to 1

Step 3

Stencil Removal
Mesh Cleaner (AQ 1008)

This is an Aquarius product. Ideal for solvent Inks and Plastisol.You apply Aquarius Mesh Cleaner to both sides of a dry screen, apply it with either pad or brush, agitate mesh cleaner well into mesh. This product will not harm the mesh so can be left on for a couple of hours, then rinse and high pressure wash the screen. See above for rinsing and high pressure washing technique.

Aquarius Screen Brite (AQ 1048)

This is an Aquarius product. Ideal for all Inks. You apply Aquarius Screen Brite to both sides of a wet screen, apply it with either pad or brush, agitate mesh cleaner well into mesh. This product will not harm the mesh so can be left on over night if dry then re apply before you rinse and high pressure wash the screen. See above for rinsing and high pressure washing technique.

Ghost Buster (GT1039)

This is an industrial product. Ideal for all ink types. You apply Ghost Buster Paste to both sides of a wet screen using either pad or brush. This product may harm the mesh, if left on too long, we recommend the paste be left no longer than ten minutes, then rinse and high pressure wash the screen. When using this product it is very important to rinse the ghost buster from the mesh before using the high pressure washer on the mesh. The paste is caustic so all precautions should be taken when using his product.

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Step 4

Mesh Degreaseing
Aquarius Degreaser (AQ 1003)

Just before coating or applying a stencil film to the screen it should be degreased. This step will remove any dust or finger prints. Apply the degrease gel to both sides of the screen with pad or brush. Then gently rinse the screen starting at the top of the frame and working down, make certain the frame its self is washed so no drips contaminate the mesh then repeat rinsing on other side of mesh. Then vacuum mesh to remove excess water. The screen is ready for its new stencil when completely dry.

Stencil Materials

Price List Excluding VAT

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Stencil Materials

Price List Including VAT

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