Drymount on Plastic?

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studio 3

studio 3

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I have a customer asking if I can drymount a poster to a piece of 1/4" plastic that is similar to PVC. I have not seen the material yet, but I was wondering if this was something even worth attempting?

Customer has an extra poster, so if first try didn't work its not a big deal if the poster is destroyed.
 
most plastics will melt or warp in heat of a dry mount press...try wet mount
 
I too had a customer request this - it failed. The dry-mount and poster survived but the plastic took on a bad curl that would not flatten out.
 
Jim's solution sounds good. The melting temperature of PVC is 176 degrees F ...awfully close to what you'd have to mount at and curling would likely occur.
 
the customer is a sign maker, so I am assuming that the PVC plastic has a significance. But I will suggest alternatives.

If the PVC is a must then I am thinking the only other alternative is to wet mount.
 
We Cold Mount (with Duramount) onto Palight which is an expanded PVC board commonly used for signage.
 
If you must mount to PVC or other sheet plastic, remember to use a good contact adhesive, such as Lascaux 360.

If you have access to a roller press, use PMA.

Acrylic medium would be a good quality adhesive for the purpose, but it takes a few days under weight to dry thoroughly on a non-hygroscopic substrate.

Don't use a water-based paste, such as Vacu-Glue or SureMount, as those may not stick to the non-hygroscopic surface.

Don't use spray adhesives, as they dry out and fail in a short time -- usually just a few years.
 
Sign Weenies use an expanded PVC product as a substrate called SINTRA made by Alcan. Sintra is a thermoplastic, and starts to soften at about 150° F...probably not suitable for a heat press.
 
I received the posters and pvc like plastic, which is much stronger than I anticipated.

the customer really wanted me to try to drymount onto it, and was confident that the plastic would not melt or warp.

So I went ahead and tried it...with success! It seems to adhere quite well. I was sure to weight it after heating and I plan to keep it weighted for at least 24 hours until the plastic can completely cool to avoid warping.

thanks for the help.
 
I love happy endings.

:thumbsup:
 
jiarby said:
Sign Weenies use an expanded PVC product as a substrate called SINTRA made by Alcan. Sintra is a thermoplastic, and starts to soften at about 150° F...probably not suitable for a heat press.
Click to expand...

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