{"id":105276,"date":"2025-12-02T00:00:31","date_gmt":"2025-12-01T22:00:31","guid":{"rendered":"https:\/\/www.erail.gr\/?post_type=product&p=105276"},"modified":"2026-04-30T19:14:11","modified_gmt":"2026-04-30T16:14:11","slug":"colle-21-primer-for-plastics-30ml","status":"publish","type":"product","link":"https:\/\/www.erail.gr\/en\/shop\/colle-21-primer-for-plastics-30ml\/","title":{"rendered":"Colle 21 – Primer for plastics, 30ml"},"content":{"rendered":"

PRIMER21 Colle21 \u2013 Professional Primer for Hard-to-Bond Plastics \u2013 30 ml
\nBoost the Bonding Power of Your Super Glue Colle21 on PE, PP, and PTFE Surfaces <\/p>\n

Struggling to glue plastics like PE, PP, or PTFE? Don\u2019t change your glue\u2014prepare your surfaces smartly!
\nPRIMER21 Colle21 \u2013 30 ml is a professional-grade surface primer specially formulated to enhance cyanoacrylate adhesion on notoriously difficult plastics.<\/p>\n

Whether you’re a model maker, DIY enthusiast, or technical repair expert, this small bottle makes a big difference between a weak bond and a rock-solid fix.<\/p>\n

Why Choose PRIMER21 Colle21?
\nImproves Adhesion on Difficult Plastics
\nTransforms low-energy surfaces like PE, PP, and PTFE into glue-friendly materials.<\/p>\n

Pro-Grade Formula
\nDeveloped specifically to solve the “nothing-sticks-here” issue with challenging plastics.<\/p>\n

Clean, Precise Application
\n30 ml bottle with integrated applicator for controlled, mess-free use.<\/p>\n

Long-Lasting, Reliable Results
\nEnsures strong, durable adhesion even in demanding conditions.<\/p>\n

How to Use PRIMER21 Colle21:
\nSurface Prep
\nMake sure surfaces are clean, dry, and free of grease.<\/p>\n

Apply PRIMER21
\nBrush a thin layer onto the edges of the plastic pieces (PE, PP, PTFE). Let sit for 20\u201330 seconds.<\/p>\n

Glue Application
\nOnce dry, apply Super Glue Colle21 to the primed area. Assemble and press together for a few seconds.<\/p>\n

Result: Strong, long-lasting adhesion even on the most stubborn plastics.<\/p>\n

Key Info:
\nSize: 30 ml
\nCompatible With: PE, PP, PTFE
\nUses: Model making, DIY, technical plastic bonding
\nWorks Only With: Colle21 cyanoacrylate adhesives<\/p>\n

Safety Tips:
\nUse in a well-ventilated area<\/p>\n

Avoid contact with eyes or skin<\/p>\n

Keep out of reach of children<\/p>\n

Wear gloves and check the safety data sheet for allergen info<\/p>\n","protected":false},"excerpt":{"rendered":"

Colle 21 – Primer for plastics, 30ml<\/p>\n","protected":false},"featured_media":105277,"template":"","meta":{"_acf_changed":false},"product_brand":[2028],"product_cat":[1976],"product_tag":[],"class_list":["post-105276","product","type-product","status-publish","has-post-thumbnail","product_brand-colle21","product_cat-1976","first","instock","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nColle 21 - Primer for plastics, 30ml - eRail - Railway modelling<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.erail.gr\/en\/shop\/colle-21-primer-for-plastics-30ml\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Colle 21 - Primer for plastics, 30ml - eRail - Railway modelling\" \/>\n<meta property=\"og:description\" content=\"Colle 21 - Primer for plastics, 30ml\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.erail.gr\/en\/shop\/colle-21-primer-for-plastics-30ml\/\" \/>\n<meta property=\"og:site_name\" content=\"eRail - 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