Acrylic (yellow blade). Hardest compound, most rigid, mainly for use on hard, flat surfaces like: Windows; granite & marble; metals; unfinished wood; rigid surfaces.
Polycarbonate blades are great for use on tough uneven surfaces. Use it safely on metals, fiberglass, and other similar surfaces.
SCRAPERITE PLASTIC RAZOR BLADES
This scraper is the right size for scraping in hard-to-reach places. The bright yellow handle stands out in a tool box. The blade reverses for safe
1-3/16 in. High Visibility Mini-Razor Blade Scraper
PlasticBlades sells plastic safety scrapers by Scraperite
Scraperite TRADESMAN SERIES Plastic Razor Blades - 2 Sides Per Blade - 100 Packs - Authentic ScrapeRite Brand (100pk, Orange) : Tools & Home Improvement
Plastic blades combo pack Medium Blue with holder SRT33MBL Scraperite
Original Titan Mini Scraper Two Edges Per Blade 52 Edges Rubber grip for comfort New thicker blade for more Durability while maintaining flexibility
25 Plastic Double Edged Razor Blade and Titan Razor Scraper
ONE HOLDER YEL W/25 BLADES/PK
Scraperite Blade Types and Characteristics
Scraperite plastic safety scrapers and holders for use where metal would be inappropriate or unnecessary. Very effective on all types of surfaces from
Scraperite TRADESMAN SERIES Plastic Razor Blades - 2 Sides Per Blade - 100 Packs - Authentic ScrapeRite Brand (100pk, Orange)
PlasticBlades sells plastic safety scrapers by Scraperite
Scraperite Blade Types and Characteristics