If you are happy using wood platens, then by all means, stick with what works for you.
If you’ve already made the switch to aluminum platens then it could be beneficial to try printing with rubber tops. Make sure to buy replacement rubber tops and when glueing the new rubber tops onto the platen use a high quality glue and try to get the rubber as seamless as possible. While the aluminum platens are more efficient, the rubber tops over time will need to be replaced. The rubber tops also give the print a softer finish, making the plastisol ink feel more like a waterbase ink screen print. However, the rubber tops can be added to help dissipate the heat faster. This added heat on the aluminum platen can cause the ink to prematurely cure. While this causes the wood to change shape over time, the aluminum will retain the heat, but maintain it’s shape. Every flash cure increases the temperature of the wood or aluminum platens. In general the aluminum platens tend to last longer than the wood platens and the aluminum is easier to clean. Rubber top aluminum screen printing platens have been an addition that some screen printers are adding to their businesses.
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