Monday, 22 November 2010

Selectasine Screen Printing System

The manufacturers of the Selectasine screen printing binders have now sent us an explanation, and helpful user advice, for the replacement of Selectasine solvent based binder TS125 for the acrylic based binder SF20:

'Due to ever increasing environmental legislation and the impact of REACH regulations, we will no longer be able to supply the Binder TS125. This will be replaced with the more environmentally friendly Binder SF20, and below are the details of the differences between the two systems:

Solvent-Based Binder TS125
Acrylic/butadiene co polymer with white spirit
Imparts a soft handle
Imparts good wash/dry properties
Imparts good dry rub fastness properties
Suitable for T Shirt or fashion garment market
Low curing temperature
High white spirit odour

Acrylic-based Binder SF20

Solvent free acrylic based binder system
Imparts a soft handle
Imparts good fastness to wash and dry clean
Imparts good wet and dry rub fastness
Primarily designed for educational and craft establishments
Introduced to meet ever increasing environmental concerns

The Binder SF20 has a higher viscosity than the Binder TS125 and can appear to produce cleaner brighter, stronger prints so the amounts of colour used in a system may be reduced. Alternatively the viscosity of the Binder SF20 can be reduced with the addition of either Ammonium Sulphate solution or Diammonium Phosphate solution.
The optimum temperature for curing the Binder SF20 is 150°c for 4 – 5 minutes, however the temperature can be reduced but the time will increase.

The information given herein and otherwise supplied to users is based upon our general experience and where applicable, on the results of tests on samples of typical manufacture. Therefore we recommend that a sample of product for evaluation in the users system prior to production. However because of the many factors outside our knowledge and control which can affect the use of these products, we cannot accept liability for injury, loss or damage resulting from reliance upon such information'

Find out more about the Selectasine Screen Printing System...


Anonymous said...

How do you stop the binder going off - the old one lasted for ages but this one goes yellow on top and starts to mould. I keep it air tight and away from heat.

Allison said...

We will try to find out more about this for you. As with most materials, the binders do not have an open ended lifespan. If you were previously using the solvent-based binder, it may be the solvent that was prolonging the life of the binder. Please bear with us while we contact the manufacturer to find out more.

Anonymous said...

We are having the same problem and it is quite irritating and wasteful when students are working on a project lasting a couple of months and the binder grows legs after one month.

Allison said...

We are sorry that you are experiencing this problem. We can offer the following advice which we hope will help to prolong the life of your binder.

- Replace the lid when not in use, ensuring an air-tight seal.
- Skim off any mould that has formed, the layers beneath should not be affected.
- Make a dilute solution (approx. 1 teaspoon to 1 litre water) of Sodium Benzoate, which is a food preservative, and float a thin layer on the top.

George Weil said...

You can now order Mould Killer from the George Weil website, recommended for customers ordering large quantities of binder, find out more