Poly 1511 Liquid Plastic

poly-1511Poly 1511 Liquid Plastic is a two-part polyurethane system with a 1A:1B mix ratio. When cured, this rigid plastic has the feel of hard wood or thermoplastics and is white in color. PolyColor Dyes and dry fillers (e.g., bronze powder) can easily be added to achieve varying looks.

This casting resin can be poured to produce decorative objects, production parts, sculpture reproductions, prototype parts, tools, models, duplicate masters, patterns and more. It is also great for making mother molds/mold shells using Poly Fiber II thickener.

This low-viscosity plastic has a 10-minute pour time and a 30-minute to 1-hour demold time depending upon the size/mass of the pour.

For a similar product with a longer pour time (22 min.), consider Poly 1512 Liquid Plastic.



Mix Ratio Shore Hardness Pour Time Demold Time Cured Color Mixed Viscosity Specific Gravity Specific Volume Maximum Exotherm Shrinkage Upon Cure
1A:1B D71 10 min. 30 min. – 1 hr. White 400 cP 1.10 25.1 in³/lb 251°F (1-lb mass) 0.0034 in/in*
Accessories: Poly 15 Part X Accelerator, PolyColor Dyes, PolyFiber II, Bronze Powder, Fumed Silica, PolyFil ND, Poly Purge Aerosol Dry Gas
 *Shrinkage is primarily caused by gelling while hot then cooling. Parts that cure with minimal temperature rise exhibit minimal shrinkage.


Product Literature: Technical Bulletin | Safety Data Sheets | Physical Properties Bulletin | Sealer & Release Agent Selection Guide

Video Tutorials: For Poly 15-Series video tutorials, visit the Poly 15-Series page or the Polytek YouTube Channel.


Select a Kit: