2 Component Polyurethane Liquid Rubber Decorative Concrete Stamp Molds Making
Brand Name:MC
Certification:MSDS,SGS
Model Number:MC-PU60A/B
Minimum Order Quantity:100kg
Delivery Time:3-5 working days after payment
Payment Terms:L/C, T/T, Western Union,
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Location:
Dongguan Guangdong China
Address:
No.2, Zhouliao Road, Langzhou Industrial Zone, Changping, Dongguan, Guangdong, China
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Product Details
Decorative Concrete Stamp Molds Making Two-Component Liquid Polyurethane Rubber
Product Description
Liquid polyurethane rubber consists of A&B component, B is curing agent, and A is
polyurethane prepolymer. It can also be used as a concrete or
cement stamping mold as well as for making hard durable rubber
parts for machinery or automotive applications.
Technical Datasheet
| A | Type | MCPU40 A | MCPU50 A | MCPU60 A | MCPU70 A | MCPU80 A | MCPU90 A |
| Appearance | Colorless or light yellow transparent liquid | ||||||
| Viscosity(30℃)mPa·s/ | 2500±300 | ||||||
| B | Type | MCPU40 B | MCPU50 B | MCPU60 B | MCPU70 B | MCPU80 B | MCPU90 B |
| Appearance | Light yellow liquid | ||||||
| Viscosity(30℃)/mPa·s | 560±200 | ||||||
| mix ratio | 1:1 | ||||||
| Appearance | Light yellow | ||||||
| Operation temperature/℃ | 25～40 | ||||||
| Gel time(30℃)*/min (variable) | 25-30 | 25-30 | 25-35 | 20-30 | 8-14 | 6-9 | |
| Hardness (shore A) | 40±3 | 50±3 | 60±3 | 70±3 | 80±3 | 90±3 | |
| Tensile strength/MPa | 4-7 | 5-8 | 5-8 | 8-11 | 9-14 | 18-25 | |
| Elongation at break/ % | 500-600 | 400-500 | 300-400 | 250-350 | 350-550 | 400-500 | |
| Tear strength/(kN/m) | 18-22 | 18-22 | 20-25 | 26-30 | 50-60 | 70-85 | |
| Rebound/ % | 30-35 | 30-35 | 30-35 | 30-35 | 36-40 | 32-35 | |
| Specific gravity(25℃)(g/ cm3) | 1.18 | ||||||
Characteristics:
It has excellent processing properties, solid in common
temperature, shorter gel time, and regulating color by adding
pigment. The ware has good properties of abrasive resistance,
hydrolysis resistance, transparent, good resilience, stable
dimension.
Application:
Substitute for Silicon rubber to make the mould of "cultural
stone". It also applies to electrical equipment potting, rubber
rollers, Ski and snowboard ,rubber plates, rubber wheels, shoe
models and others.
USING INSTRUCTION
Mixing:
1.Shake both A and B sides vigorously.
Shake or stir well before use The liquid components may settle in
the containers during storage. Let it sit a few minutes to let any
bubbles rise to the surface after shaking the container.
2.Measure out equal parts, by volume, of A and B into clean plastic
or metal containers.
Combine both sides into a third clean mixing container and mix
vigorously for at least one minute, taking care to scrape the sides
and bottom of the mixing container with your mixing utensil, until
the product is one uniform color
Notes:
1.Always wear a respirator or self -contained breathing apparatus
when working with urethanes.
2.Use between 65F and 75F in a humidity-controlled environment.
3.It is always best to mix the material by hand, with a plastic or
metal mixing utensil.Avoid mixing with drill motors because of the
friction they generate, mixing with electric drills can start the
exothermic cure process and cause the product to cure in the mixing
container.
4.Don't vary the mix ratio. Unlike some polyester resins, altering
the mix ratio to vary the cure cycle will not work with urethanes.
5.Mix in clean plastic containers. Paper cups and wooden mixing
utensils may contain moisture which can adversely affect the
urethane rubber. Avoid waxed paper cups because the wax may melt
and contaminate the rubber.
6.Air bubbles in urethanes are almost always caused by moisture. Do
everything possible to avoid moisture getting into the mix.
7.Replace the lids onto the containers promptly after use. Do not use
the urethane rubber during rainy days or times of high humidity.
8.Avoid pouring against an unsealed water based product such as
plaster or hydrocal. Seal plaster or hydrocal with a product like
Krylon Clear Acrylic.
9.Avoid mixing a large batch- The larger the batch, the more exotherm
or heat is generated in the cure cycle. If you are making a large
mold, mix small batches to make the process more manageable.
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.
Package:20Kg/drum;200kg/drum
2 Component Polyurethane Liquid Rubber Decorative Concrete Stamp Molds Making
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