PH Testing Pen – Lineco

PH Testing Pen – Lineco$20.00 The pH testing pen provides a quick and easy method for testing the acidity of paper. Simply draw a line and watch the colour as it dries. The chlorophenol red will turn purple/lavender as it dries if the paper is acid-free or neutral pH, while yellow or colourless indicates acidity. PH Testing Pen - Lineco quantity Add to cart Related products Reemay $11.00 Details Gummed Linen Hinging Tape – Lineco $31.35 – $56.10 Details This product has multiple variants. The options may be chosen on the product page Methyl Cellulose 4000 CPS $15.00 – $83.00 Details This product has multiple variants. The options may be chosen on the product page Gift Voucher Pigma Pens