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TECHNICAL DATA - TYPE XH (MELAMINE)
Type XH is a Thermoset Melamine Formaldehyde plastic media which is very
aggressive and is recommended for stripping iron based or equivalent material
where residual stress will have no consequences. This is also commonly used
in the semiconductor industry to remove mold flashes and resin bleed on epoxy
molded packages. Type XH media meets Mil Std specification of Mil-P-85891
Type III. It is anti-static treated and has the following chemical and physical
properties. |  |
| Chemical nature |
Inert |
| Appearance |
Granular |
| Colour |
Multi coloured |
| Hardness |
Barcol 64-74
MOH 4.0 |
| Tensile strength |
5000 - 15000 psi |
| Elongation |
0.6 - 1.0 % |
| Comprehensive Strength |
33000 - 45000 psi |
| Izod Impact ( 0.125" specimen ) |
0.2 - 0.4 ft lb/in |
| Explosibility - minimum explosive concentration |
0.09 oz/cu ft |
| Ignition temperature |
530 deg C |
| Specific gravity |
1.47 - 1.52 |
| Melamine Formaldehyde |
Minimum 95% |
| Phenol Formaldehyde |
Maximum 5% |
Melamine Formaldehyde has a full spectrum of colours and may vary from shipment
to shipment.
The properties will be within the above mentioned specifications and performance
will not be affected.
LITERATURE
Description
Plastic synthetic resins, are specifically designed for use in air blasting
removal of flashes on electronic components, removal of paint coatings, carbon
and residues from aircraft engines, trucks etc.
Various types of Plastic Media are available with different hardness and
performance characteristics to suit most applications. The following are
the media types.
| Type |
Material |
Mohs Hardness |
Barcol Hardness |
MIL std equivalent |
| XH |
Melamine |
4.0 |
54 - 74 |
Type III |
| H |
Urea |
3.5 |
54 - 62 |
Type II |
| HA |
Phenol |
3.5 |
54 - 62 |
Type IV |
| HB |
Acrylic |
3.5 |
46 - 54 |
Type V |
| S |
Polyester |
3.0 |
34 - 42 |
Type I |
The particle shape is irregular with sharp, angular edges and corners, They
are available in various U.S.Standard mesh sizes.
| Sizes |
Mesh Sizes |
Inches |
mm |
| 12 - 16 |
12 - 16 |
0.066 - 0.045 |
1.66 - 1.14 |
| 16 - 20 |
16 - 20 |
0.047 - 0.030 |
1.19 - 0.76 |
| 20 - 30 |
20 - 30 |
0.033 - 0.021 |
0.84 - 0.53 |
| 30 - 40 |
30 - 40 |
0.023 - 0.015 |
0.55 - 0.38 |
| 40 - 60 |
40 - 60 |
0.016 - 0.009 |
0.41 - 0.23 |
| 60 - 80 |
60 - 80 |
- |
0.25 - 0.15 |
In addition to the above standard sizes, other sizes and combinations are
available upon request.
MATERIAL SAFETY DATA - TYPE XH, H & HA
PRODUCT IDENTIFICATION
| Trade Name |
Medias Plastic Blasting Media Type XH, H & HA |
| Chemical Name |
Polymerised Aralno Thermoset Resin |
| Chemical Family |
Condensation Polymers |
HAZARDOUS COMPONENTS
No TLV has been established for any component of this product.
PHYSICAL DATA
| Appearance |
|
Granular Solid |
| Boiling Point |
|
Not Applicable |
| Vapour Pressure (mm or HQ ) |
|
Not Applicable |
| Vapour Density |
|
Not Applicable |
| Solubility in water |
|
Not Applicable |
| Specific Gravity |
|
1.45 - 1.52 |
| % Volatile by Volume |
|
0 |
| Evaporation Rate |
|
Not Applicable |
FIRE AND EXPLOSION HAZARD DATA
| Ignition Temperature |
|
530 Deg. C |
| Flammable Limit |
|
Not Applicable |
| Extinguishing Media |
|
CO2, Dry Chemical of water. |
| Special Fire Lighting procedures |
|
Do not use high pressure water stream. |
| Unusual Fire Hazards |
|
Airborne dust of any nature could form explosive mixture with air. Maintain
good housekeeping for control of dust. |
HEALTH HAZARD DATA
| Threshold Limit Value |
|
No TLV has been established for any component of this product. |
| Effect of overexposure |
|
Dust inhalation may cause irritation . |
| Emergency and first aid |
|
In case of irritation of eyes, flush with water, Irritation of respiratory
tract, removes to fresh air.
Call physician if necessary. |
REACTIVITY DATA
| Stability |
|
Stable |
| Incompatibility |
|
No change in reactivity due to accidental contact with other material. |
| Hazardous polymerization |
|
Will not occur |
SPILL OR LEAK PROCEDURE
| Steps to be taken in case material is released or spilled |
|
Sweep up and place in waste disposal container. |
| Waste disposal method |
|
Dispose per state and regional regulations. |
SPECIAL PROTECTION INFORMATION
| Respiratory Protection |
|
The need for respiratory protection should be
Determined by an industrial Hygiene Evaluation. |
| Ventilation |
|
Locate exhaust where necessary to maintain exposure
Level to OSHA permissible limits. |
| Protective Gloves |
|
Not required |
| Eye Protective Gloves |
|
Safety Goggles |
| Special Precautions |
|
None |
Features
-
Manufactured to stringent hardness, size, composition and cleanliness.
-
Nonvolatile, Nonhygroscopic.
-
Inert, stable, no change in reactivity due to accidental contact with other
material.
-
Can be used with any blast or glove booth, soft grit equipment.
-
High Ignition temperature
-
Unlimited shelf life
-
Multiple reuse in conjunction with reclamation and recovery systems
-
Minimal dust during operation
-
No oil content, does not leave any oil residue. Can avoid additional solvent
cleaning process. Agricultural media leaves oil residue on substrate
-
Low physical breakdown during use, thus longer life.
-
Contains no heavy metals
-
Antistatic treated
-
Free of toxic elements
Packaging
-
250 lb per fiber drums
-
50 lb per carton boxes
Use Instruction
Use with any soft grit blasting cabinets or special pellet blasting equipment.
Disposal Information
Dispose off spent product per local, state and regional regulations.
Caution
Avoid contact with eye, skin and clothing. Avoid breathing dust. Do not take
internally, use with adequate ( equivalent to outdoors ) ventilation.
Notice
The above information and recommendation concerning these products are based
upon laboratory tests and field use experiments. However, since conditions
of actual use are beyond our control, any recommendations or suggestions
are made without warranty, expressed or implied. Manufacturer's and distributor's
sole obligation shall be to replace that portion of the product shown to
be defective. Neither shall be liable for any loss, damage or injury, direct
or consequential, arising out of the use of these products.
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© 2000 Medias Industrial Products Sdn Bhd
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