Plastic sandblasting medium is a polygonal and angular small abrasive with a certain hardness and density. Under a certain air pressure, granular polymer abrasive (resin sand) is sprayed onto the surface of the workpiece to quickly and undamaged achieve cleaning effect. It is used for surface treatment of the workpiece, pre-treatment before surface coating, and changing the mechanical properties of the workpiece, as well as polishing the surface of the workpiece. It is widely used in the aviation industry, shipbuilding industry, automotive industry, etc In the fields of high-speed trains, mechanical manufacturing, molds, rubber, electronics, etc.
Colored plastic sand
Product model, characteristics, and application:
| Product Model Description | Characteristic | Application |
| UKII-1 aviation abrasive is a polygonal angular abrasive with a certain hardness and density, with a product specification range of 20-30 mesh (can be adjusted according to customer special requirements). In the flexible operation system process, it does not damage the surface substrate of aviation components and quickly peels off surface attachments. | Widely applicable temperature range, abrasive does not produce toxicity during application and is environmentally friendly. Has strong anti friction and anti-static capabilities. | Widely used in the aviation industry for machinery and related components. Resin sand plastic abrasive plastic sand polymer plastic abrasive |
| UKII-2 type is a polygonal angular fine abrasive with certain hardness and density, with a product specification range of 40-80 mesh (can be adjusted according to customer special requirements). In a flexible and fixed sandblasting operating system, it does not damage the surface substrate of electronic components and boards and quickly peels off surface attachments. | Widely applicable temperature range, abrasive does not produce toxicity during application and is environmentally friendly. Has strong anti friction and anti-static capabilities. | Widely used in the electronic industry for sheet metal and components. |
| MKII-1 type is a polygonal angular abrasive with better hardness and density, with a product specification range of 8-16 mesh (adjustable according to customer specific requirements). Under specific sandblasting conditions and flexible operation control systems, it does not damage the inner wall of pipelines and the base of containers, and quickly peels off corroded attachments. MKII-1 type is a polygonal angular abrasive with good hardness and density, with a product specification range of 20-40 mesh (can be adjusted according to customer special requirements). According to the characteristics of rubber varieties, it can cut the burrs and attachments of rubber and plastic products in a flexible operation control system. | Widely applicable temperature range, abrasive does not produce toxicity during application, and is environmentally friendly. Has strong anti friction and anti-static capabilities, and good flame retardancy. Widely applicable temperature range, abrasive does not produce toxicity during application, and is environmentally friendly. Has strong anti friction ability. | Widely used in the aviation industry for machinery and related components. Resin sand plastic abrasive plastic sand polymer plastic abrasive |
| MKII-2 is a polygonal angular abrasive with good hardness and density, with a product specification range of 30-50 mesh (adjustable according to customer specific requirements). Under specific and fixed conditions, it is cut using flexible methods in a controllable operating system without damaging the surface substrates of various metal objects. | Widely applicable temperature range, abrasive does not produce toxicity during application, and is environmentally friendly. Has strong anti friction and anti-static capabilities, and good flame retardancy. | Widely used in the cutting of metal parts such as motor vehicles and molds, as well as the removal of attachments. Resin sand plastic abrasive plastic sand polymer plastic abrasive |
2、 Main technical indicators of materials：
The main technical indicators of the above materials meet the requirements of the US military standard MIL-P-85891A
3、Scope of application of abrasives
1. Use:
Surface treatment of workpieces, pre-treatment before surface coating, and modification of mechanical properties of workpieces, as well as surface finishing of workpieces.
2. Expected fields:
In the fields of aviation industry, shipbuilding industry, automobiles, high-speed trains, mechanical manufacturing, molds, rubber, electronics, etc.
3. The specific applications are as follows:
(1) Pre treatment (surface treatment): sandblasting treatment before all covered processes such as electroplating, spraying, and painting;
⑵ Cleaning: Remove oxide skin, residue, and dirt from metal workpieces such as castings, stamped parts, welded parts, and heat treated parts; Clean non-metallic surfaces, remove hard shells containing carbon ash, etc.
⑶ Refurbishment of old parts: The refurbishment and cleaning of all moving parts such as cars, motorcycles, and electromechanical equipment can be done by removing paint and skin.
4. Burr treatment: removal of small burrs on machined parts and removal of burrs on rubber surfaces (if applicable in the field of rubber tires).
(5) Light decoration: All metal and non-metallic products (plastic, crystal, glass, etc.) have surface traces eliminated, and a matte matte finish is applied to improve the quality of the product surface.
Cleaning of oilfield oil pipes and valves ensures safety during the cleaning process without generating static electricity or sparks.
4、 Usage of materials
Under a certain air pressure, spray granular polymer abrasive (resin sand) onto the surface of the workpiece to achieve cleaning effect quickly and without damage.
Suggest different materials should have different technical parameters
If used for cleaning carbon fibers in composite materials, it is recommended to use Type II resin sand.
Suggest using Type III resin sand for metal materials
Parameters related to the use of resin sand under normal conditions
| Ⅱ | Ⅲ | |
| nozzle pressure(psi)ī/c㎡ | 45psi)ī/c㎡ | 45psi)ī/c㎡ |
| Spray speed, feeding speed (pounds/hour, 0.454 kilograms/hour) | 140~170pounds per hour | 125~155pounds per hour |
| Spray grinding rate (square feet/minute, 929 square centimeters/minute) | 0.15(140 square centimeters/minute) | 0.15 (140 square centimeters/minute) |
| Erosion * Maximum Limit (milligrams/square centimeter) | 0.50 milligrams per square centimeter | 3.00 milligrams per square centimeter |
| Average abrasive consumption (%/time) | 13%/次 | 13%/次 |
| Angle | 75° | 75° |
| Distance（cm） | 30-50cm | 30-50cm |
| Nozzle Diameter（cm） | 8cm | 8cm |
| Mesh count | 16-20Mesh count | 16-20Mesh count |
5、 Warning
1. The air storage tank and pressure gauge of the sandblasting machine should be regularly calibrated;
2. The abrasives flying out of the sandblasting machine and the peeled off objects on the workpiece during high-speed operation may cause personal injury, so protective equipment must be worn before work;
3. Resin sand should be stored in a dry and ventilated place, away from heat sources.
4. The treatment of waste abrasives must consider environmental requirements.
| Specification | ||
| Project | Ⅱ | Ⅲ |
| Chlorine content% | Trace 1% | Trace 1% |
| H value | 4-8PH | 4-8PH |
| Conductivity us/cm | 100us/cm | 100us/cm |
| Conductivity us/cm | 100us/cm | 100us/cm |
| Water absorption% | 10.0% | 10.0% |
| Bulk Density g/cm3 | 0.6-0.7 g/cm3 | 0.6-0.7 g/cm3 |
| Colour | Or mixed particles of multiple colors | Or mixed particles of multiple colors |
| Barcol Hardness HB a | 54-62 HB a | 64-72 HB a |
| Qualitative analysis of infrared spectroscopy | urea-formaldehyde resin | Polycyandiamide resin |
| Stripping rate (square feet per minute) | 0.15 square feet per minute | 0.15 square feet per minute |
| Proactivity (milligrams per square centimeter) | 0.50 milligrams per square centimeter | 3.00 milligrams per square centimeter |
| Consumption rate (one cycle) | 13% | 13% |
