High Strength 1:1 Two-Component Polyurethane Liquid Rubber For
Making Wall Tile Concrete Stamping Molds
Description
Polyurethane liquid rubber consists of A&B component, B is
curing agent, and A is polyurethane prepolymer.
can be used as a concrete or cement stamping mold as well as for
making hard durable rubber parts for machinery or automotive
applications.
There are many different formulations of polyurethane rubbers for
mould making. The polyurethane casting rubber can be pure or filled
with special mineral charges. Are available different hardness from
40 Shore A to 80 or 90 Shore A.
Applications
Substitute for making the mould of “cultural stone” and concrete
stamping. It also applies to electrical equipment potting, rubber
rollers, Ski and snowboard ,rubber plates, rubber wheels, shoe
models and others.
Properties of Liquid Polyurethane Rubber for Making Concrete GRC
Molds:
Technical Datasheet
A | Type | MC-PU70A |
| Appearance | Colorless or light yellow transparent liquid |
| Viscosity mPa·s) | 1400±300 |
B | Type | MC-PU70B |
| Appearance | Light yellow liquid |
| Viscosity( mPa·s) | 560±200 |
| Ratio A:B(mass ratio) | 1:1 |
| Working time */min | 15-20(variable) |
| Appearance | Light yellow |
| Hardness (shore A) | 70±2 |
| Tensile strength/MPa | 8-11 |
| Elongation at break/ % | 250-350 |
| Tear strength/(kN/m) | 26-30 |
| Rebound/ % | 30-35 |
| Specific gravity(25℃)(g/ cm3) | 1.18 |
Features
Fluid liquid
Cold curing
Easy to use
No linear shrinkage
Excellent mechanical resistance
High tearing strength
Long life of the moulds
Measuring & Mixing
Liquid urethanes are moisture sensitive and will absorb atmospheric
moisture. Mixing tools and containers should be clean and made of
metal or plastic. Materials should be stored and used in a warm
environment (23°C-25°C).
IMPORTANT: Stir Part B thoroughly before dispensing. After
dispensing equal amounts of Parts A and B into mixing container,
mix thoroughly forat least 3 minutes making sure that you scrape
the sides and bottom of the mixing container several times.
Packaging
20kg per drum, 320kg per pallet
Storage
Store in cool and dry place. If you can’t use one drum up at a
time, please inject N2.The storage time of original packing is 6 months.
MINGCHENG GROUP LIMITED with brand MC Silicone,established in 2011, is a professional manufacturer of silicone mould making and
casting materials based in Dongguan, China.
Our professional approach to all our work, together with creative
ideas and strong technical skills, enable us to produce high
quality, cost effective materials.
Our products include:
1.Condensation cure silicones for making molds for gypsum, concrete
and resin arts and crafts, candle soap and shoe mold,
2.Addition cure silicones for making molds for jewelry, rapid
prototype, food grade silicone for chocolates and cakes,life
casting silicone.
3.Addition cure silicone putty for equine hoof cushion making, resin crafts mold
making.
4.silicone potting compound for electronics encapsulating.
