Join me into your add

| Home |Epoxy Resin|Polyurethane|Silicone|Hardener|Accelerant|Thinner|Flame Retardant|Filler|Coupling Agents|Company URL|Contact|

WL-4500-1A/4500-1B Filled urethane system

 

   (Filled urethane system with low viscosity, after curing, exhibiting very good electric propertiesmechanic properties and low water absorption, suited for potting or casting of electric electronic units. )

l          Properties:

Item

Testing Method or Unit

WL-4500-1A/-1B

Appearance

A

By visual

Brown liquid

B

Black liquid

Viscosity

A

25 mPa·s

50-100

B

3000-5000

A+B

500-1000

Density

A

25 g/cm3

1.13±0.05

B

1.36±0.05

Tack-free time

30g 25 min

>30

Mixing Proportion

By weight

A B=30 100

Curing Schedule

/h

25/24 or 60/3-4

Shelf life

R.T. sealed

3 months

                               

l          Properties after Curing

Item

Testing Method or Condition

WL-4500-1A/-1B

Hardness

Shore-A

85±5

Volume Resistance

25℃,Ω·cm

>1013

Water Absorption

24h, 25℃,%

<0.3

Insulation Strength

25℃,kV/mm

>20

Tensile strength

MPa

12

Flammability

UL-94

V-0

l          Storage:

The products should be stored in a dry place and in the tightly closed original container. Under these conditions their shelf life will be as shown above.

l          Packaging:

   4500-1A: 20kg  metal container.

   4500-1B: 18kg  metal container.

l          Remarks:

(Working Place Safe Protection)

Working Overall          Needed

Gloves                  Must

Sleeve                  Recommended while contacting skin

Goggle/ Safety Glass      Needed

Anti-toxic Mask/ Anti-dust Mask  Not needed

 

( Skin Protection)

Before Working             Bare skin need to be rubbed with protection oil or paste.

After Working              Rubbed with protection or nutrition oil or paste.

Contaminated skin washing   Slightly rub with paper tissue, then wash with warm water and non-alkali soap, Don’t use solvents!

( Cleaning for the working place)

Use light color paper to cover working table, or use disposable beaker etc.

( Spilled materials tereatment)

Use sawn wood powder or cotton to absorb it, then put into Garbage Bin lined with plastic film.

(Ventilation)

Workshop                Vent, often have air changing

Working Place             Install Vent Fan, Prevent from inhaling steam.

   

Ú Note: The data above are typical tested at a relative humidity of 70 % and a temperature of 25. They are just for customers’ reference. We cannot wholly guarantee all the listed data will be reached under specific test conditions. When applying the product, the customers should use data obtained through their own testing.

Back

China Epoxy Resin Application Net, All Rights Reserved.
Designed by China Epoxy Resin Application Net Contact: Webmaster