traitement de surfaces

Surface treatment with impact
Glass pearl blasting - Steel shot blasting - Sand blasting

The treatment with impact of surfaces and metallic pieces of all kinds of materials can be realized with :

	The most active one , the most abrasive one.	Long service life, little dust, high price per kilo.	The most current one, general use.	The heaviest , the most greedy in air.	Very economical, permits to not recuperate during blasting in free air.	The softest, non destructive to obtain the best finish.
Physical properties Comparison	R 01 abrasive grits «corindon»	R 03 full ceramic pearls	R 04 micro glass pearls	R 05 steel shot	R 06 glass crystals in silicate alumina	R07 pealed nutshells
SHAPE	angular	spherical	spherical	ovoid	angular	irregular
COLOR	brown	white	white	grey	brown	light brown
Specific density	2,5 - 4	3,76	2,4 - 2,5	7,6 - 7,8	1,3	600 up to 650 kg/m³
% of free silica	1%	0%	0%	0%	< 0,1%	0%
% of free iron	1%	0%	1%	0%	8%	0%
Hardness (MOHS)	9,2		4,5 - 6,5	7,5	6,0 - 7,0	3,0 - 4,0
Toxicity	very little	nil	nil	nil	very little	nil
Metal removal	important	little	little up to nil	important up to medium	medium	nil
Cleaning speed	high	medium up to high	medium	medium up to high	medium up to high	medium
Obtained finish	profound satin	various satins	various satins	alveolar surface	various satins	velvet-like
Contamination	none	none	none	important	none	none
Dry blasting	yes	yes	yes	yes	yes	yes
Wet blasting	no	no	yes	no	no	no
Consumption	medium	medium	little	medium	medium up to little	medium
Wear of the equipment	medium up to high	little	little	little up to medium	medium up to high	little up to nil

R01 Abrasive grits «corindon»

average Ø	ORDER No
400 micron	R 01/037	5 kg
350 micron	R 01/047	5 kg
250 micron	R 01/061	5 kg
170 micron	R 01/081	5 kg
120 micron	R 01/101	5 kg
100 micron	R 01/121	5 kg

R03 Ceramic pearls

average Ø	ORDER No
250 up to 420 micron	R 03/925	25 kg
125 up to 250 micron	R 03/912	25 kg
70 up to 125 micron	R 03/907	25 kg

R04 Micro glass pearls

average Ø	ORDER No
250 up to 425 micron	R 04/025	25 kg
150 up to 250 micron	R 04/015	25 kg
75 up to 150 micron	R 04/008	25 kg
45 up to 90 micron	R 04/005	25 kg

R05 Steel shot

average Ø	ORDER No
300 up to 590 micron	R 05/030	25 kg
180 up to 420 micron	R 05/020	25 kg
120 up to 300 micron	R 05/010	25 kg

R06 Glass crystals in silicate alumina

average Ø	ORDER No
1400 up to 2200 micron	R 06/512	50 kg
400 up to 1600 micron	R 06/520	50 kg
100 up to 500 micron	R 06/550	50 kg

R07 pealed nutshells

average Ø	ORDER No
1400 up to 2200 micron	R 07/002	25 kg
700 up to 1500 micron	R 07/003	25 kg
250 up to 1000 micron	R 07/004	25 kg

NOTES:
* 100 micron = 0,1 mm.
* R06 is lighter than R01, 04 and 05.
* R07 loves dry air.

* The diameter of the projection tube and the pressure of the compressed air have an influence on the power of the impact and permit the installation to project more or less voluminous particles.

* To mark/mat glass, blast with silicon carbide grit 60 ORDER No. R 03/061

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