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UF [Urea Formaldehyde] [Melamine] [Plastics blast media]

SONEPA manufactures a full line of plastic blasting media ideal for a vast range of uses including paint removal, surface preparation, deflashing, and contamination stripping.
 

Typical Product Applications

No. Photo Description
UF-401 Urea Formaldehyde Mouldings scrap and chipped mouldings  from  electrical accessories, dinnerware etc, white and pastel colours Barcol Hardness Range 54-62 Without dominos, metals, foils, black/brown components.
M-402 Thermoset Melamine Formaldehyde scrap: Melamine mouldings and chiped mouldings scrap, white and pastel colours. Barcol Hardness Range 64-72. Without dominos, metals, foils, black/brouwn components.
The Plastic Media Blast we offer:
Various Media.
Standard and specialized mesh sizes

Our PLASTIC MEDIA is manufactured in 2 major hardness types and 5 standard mesh sizes with specialty sizes available on request. The diversified PLASTIC MEDIA family of dry stripping abrasives meets the requirements of MIL-P-85891 approved for use by the U.S. Army, Navy, Air Force and several armed services outside the US.

Type II - Thermoset Urea Formaldehyde.
3.5 Moh Hardness; most heavily used type; significantly aggressive but forgiving.
Selected applications: Fastest practical media for stripping aircraft, trucks, trailers, tractors, rail cars, vans, motor homes, marine vessels, cars, buses. Approved by U.S. Air Force for stripping airframes.

TYPE V: Acrylic 3.23.5 Moh Hardness, longest lasting type. 
Selected applications: For stripping aircraft structures, trucks, trailers, tractors, rail cars, vans, motor homes, marine vessels, cars, buses.
 Considerably "more forgiving" in the hands of an operator.

Grinding line


PHYSICAL PROPERTIES
     Barcol Hardness MOH Hardness Specific Gravity Apparent Density
Type-II Urea  54-62 3.5 1.5 0.7-0.8
Type-III Melamine   64-72 4.0 1.52 0.7-0.8
Type-V Acrylic  46-54 3.2 - 3.5 1.2 0.6-0.7

Used for a variety of applications i.e. mould tool cleaning, any delicate application where no surface alteration is permitted, paint removal from aircraft, deposits from glass fibre/plastic boats. 
 CHEMICAL ANALYSIS

Type II - Thermoset Urea Formaldehyde 
PHYSICAL a. Bulk Density Untamped
0.7 g/cm3
PROPERTIES b. Shape
Angular
for Type II c. Colour
Multi-coloured
d. Specific Gravity
1.5 g/cm3
e. Hardness
(54-62 Barcol) 3.5 Mohs
STANDARD MESH TYPES SIZE RANGE AVAILABLE:
Blended Sizes Available: - Higher number is finer
12/16 (1,68 / 1,19 mm) 16/20( 1,19 / 0,84 mm) 20/30( 0,84 / 0,58 mm) 
30/40(0,58 / 0,42 mm) 40/60(0,42 / 0,25 mm) 60/100( 0,25 / 0,15 mm) 
Key Benefits
Most popular plastic stripping type
Manufactured to MIL-P-85891A specifications
Full range of sizes and packing options available
Type III Thermoset Melamine Formaldehyde 
Melamine is engineered for stripping the most difficult surfaces while providing an effective stripping rate. Melamine is the most aggressive plastic abrasive, offering an excellent range of stripping capabilities. Melamine can be used as a replacement for glass beads and other harsh abrasives.

CHEMICAL DESCRIPTION

PHYSICAL a. Bulk Density Untamped
0.7 kg/m3
PROPERTIES b. Shape
Angular - Cubical
for Type III c. Colour
Multi-coloured
  d. Specific Gravity
1.5 g/cm3
  e. Hardness
(64-72 Barcol) 4.0 Mohs

Key Benefits
Highest aggression plastic blast media c. x6 aggression of Urea. 
Manufactured to MIL-P-85891A specifications. 
Full range of grades and packing variants available 
 

UF-403 UF blast media spent scrap
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