También es importante lavarlo para limpiar el apresto o almidón que les ponen a las telas, y luego ...
thank you. I did not know this. :) It depends on your climate.But why chance it, use acid free and your hard work will be enjoyed for years Following this thread Very Nice!! Thanks for the info! Thank you very much for this tip! Спасибо большое за информацию,сам долго об этом думала и было очень интересно читать I have had things ruined, that I didn't frame but purchased at auctions or estate sales that were framed with non-acid free mats and they are significantly discolored. I will estimate the pieces were framed probably 10 to 20 years ago. Based on what I've seen I think the discoloration starts happening quite quickly and most likely is encouraged by certain environments. I don't think it's worth the risk to use non-acid free materials.
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