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Product
- Manufacturer
- Directa
- Manufacturer #
- 1936
- Item code
- 107-0749
Catalog path
- Marketplace
- Laboratory
- Category
- Lab Equipment
- Subcategory
- Surface Prep & Dust Collection
Ordering
- Status
- Ships in 3 business days
More from Surface Prep & Dust Collection
Stocked in the same subcategory.
Buffalo Dental
Buffalo Optiblast II Microblaster Finishing System Intro Kit (Including 60 Degree Tip
055-0340
$213.60
About sandblasting equipment
Lab sandblasting equipment does airborne-particle abrasion: it alters the surface of a material with abrasive particles propelled by compressed air. A blast cabinet is an enclosure in which the operator stands outside and works the blasting nozzle through openings. OSHA requires a blast enclosure to be exhausted so that air flows inward at every opening while blasting goes on.
A sandblaster does what dentistry calls airborne-particle abrasion: it alters the surface of a material with abrasive particles propelled by compressed air. A dust collector is a device, or a combination of devices, that separates dust from the air an exhaust system draws off.
The CDC reports that dental laboratory technicians can breathe in crystalline silica dust when mixing powders, removing castings from moulds, grinding and polishing castings and porcelain, and blasting with silica sand. Silicosis, the lung disease caused by breathing in that dust, is preventable.
How dust collectors, sandblasters and cleaners differ
- Dust Collection & Filtration — Takes the dust out of the air that grinding, polishing and blasting put it into.
- Sandblasting Equipment — Works on the surface itself, with abrasive driven by compressed air.
- Ultrasonic & Steam Cleaners — Cleans with a liquid bath or a jet of steam instead of an abrasive.
- General Repair & Replacement Parts — Parts and accessories for steam cleaners, ultrasonic cleaners and sandblasters.
What to look at when choosing
Dust: blasting shatters the abrasive and the surface being blasted, and the dust formed contains particles small enough to be breathed in.
Exposure limit: OSHA limits respirable crystalline silica in the air to 50 micrograms per cubic metre, averaged over an 8-hour day.
Particle size and pressure: smaller particles at lower pressure remove less material with more precision, and larger particles at higher pressure remove material faster.
Noise: a study of dental laboratories names sandblasters among the equipment with high sound levels and puts compressed-air blasting at up to 105 dB.
Sources: The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · OSHA 29 CFR 1910.94, Ventilation (abrasive blasting; grinding, polishing and buffing) · CDC, Silicosis in Dental Laboratory Technicians, Five States, 1994-2000 (MMWR 53(09)) · CDC, Guidelines for Infection Control in Dental Health-Care Settings, 2003 (MMWR 52 RR-17) · Assessment of hearing performance of dental technicians due to the professional noise exposure (BMC Oral Health 2023) · OSHA 29 CFR 1910.1053, Respirable crystalline silica · Air-Abrasion in Dentistry: A Short Review of the Materials and Performance Parameters (J Biomed Phys Eng 2024)
