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Paint Overspray Collectors Multilayer Filters
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Description

Also known as Columbus Filters (from Columbus Industries, Inc.), raccoglivernice© Paint Overspray Collectors or Arrestors are multilayer filters used in paint mist and Overspray Filtration, to catch and capture particulates from the exhaust air of liquid paint spray booths.

Classified as Hi-tech Paint Collectors, these baffle/strainer-type paint collectors consist of up to eight layers of slit and flame-retardant expanded kraft connected by longitudinal seams in silicone-free yarn.

“The same filter does not behave the same way with different paints.”
This is the first principle of science that deals with overspray removal.
Paints and varnishes are more than 4,000. The overspray can be very different: dry, sticky or semi-sticky, slow or rapid drying.
Also the application technique affects the size of the overspray particles and thus the capacity of the filters to separate it from the air flow that carries it.

To face these differences Columbus Industries, Inc. produces a range of Paint Overspray Collectors which, individually or in combination, can solve most of the overspray removal problems.


Typologies:

STANDARD Paint Overspray Collector STD

STANDARD Paint Overspray Collector STD

STANDARD Paint Overspray Collector STD consists of:

  • flame-retardant expanded kraft layers, with final back layer in mini-mesh;
  • several layers overlapped and tied by sewing

These multilayer filters are suitable for one stage exhaust filtration or pre-filtration in a wide range of spray booths coatings, especially conventional coatings.

Experimental data:

Coating product Efficiency [%] Drift [kg/m²]
Air-dry enamel 97 4.5
Bake-dry enamel 97.5 7.8
Varnish 88.5 2.3
Water-soluble enamel 97.5 6.6
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HIGH CAPACITY Paint Overspray Collector HC

HIGH CAPACITY Paint Overspray Collector HC

In HIGH CAPACITY Paint Overspray Collector HC, “Standard” front layer is replaced by three layers of extra wide mesh expanded kraft.

These multilayer filters are suitable for one stage exhaust filtration or pre-filtration in a wide range of spray booths coatings, especially heavier, tacky-type coatings, conventional coatings and in situations requiring extended service life.

Experimental data:

Coating product Efficiency [%] Drift [kg/m²]
Air-dry enamel 96 8.8
Bake-dry enamel 98 14.8
Varnish 94 3
Primer 94 18.8
Water-soluble enamel 97 12.28

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HIGH CAPACITY 2M Paint Overspray Collector HC_2M

HIGH CAPACITY 2M Paint Overspray Collector HC_2M

HIGH CAPACITY 2M Paint Overspray Collector HC_2M consists of flame-retardant expanded kraft layers, with final back layer in mini-mesh.

These multilayer filters are suitable for one stage exhaust filtration or pre-filtration in a wide range of spray booths coatings, especially conventional coatings.

Experimental data:

Coating product Efficiency [%] Drift [kg/m²] at 120 Pa
Bake-dry Water-soluble metalized enamel 97.69 9.5
Bake-dry enamel 92.13 8.8

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Paint Overspray Precollector PREC1

Filtri Multistrato raccoglivernice© Precollector1

Paint Overspray Precollector PREC1 consists of flame-retardant expanded kraft layers, with final back layer “small”.
Paint Overspray Precollector is designed as a pre-filter to other types of Columbus Filters and is not normally recommended to use it alone.
Therefore no efficiency data are provided; anyway as a guide for the choice, it can be assumed that their efficiency is between 45 % ÷ 65 %.

These multilayer filters are suitable for pre-filtration with high concentrations of overspray.

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Paint Overspray Precollector PREC2

Filtri Multistrato raccoglivernice© Precollector2

Paint Overspray Precollector PREC2 consists of flame-retardant expanded kraft layers, with final back layer in mini-mesh.
Paint Overspray Precollector is designed as a pre-filter to other types of Columbus Filters and is not normally recommended to use it alone.
Therefore no efficiency data are provided; anyway as a guide for the choice, it can be assumed that their efficiency is between 50 % ÷ 70 %.

These multilayer filters are suitable for pre-filtration with high concentrations of overspray.

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EUROSUPRA Paint Overspray Collector S1

Filtri Multistrato raccoglivernice© Eurosupra®1

EUROSUPRA Paint Overspray Collector S1 consists of five layers of slit and flame-retardant expanded kraft with multistage designed baffle openings expanded kraft combined with one layer of a duo-density singed synthetic backing (polyester fibers), which maximize high efficiency (to capture fine particles) and strength (to provide long service life).
This media was developed to meet the high-efficiency requirements of installations using many of today’s compliance coatings including high solids, waterbornes, catalyzed and bake-dry coatings. Supra l Mini-Mesh Collectors are also recommended for use on coatings with overspray which is tacky to semi-tacky as it encounters the overspray collector.

These multilayer filters are suitable for high efficiency one stage filtration or final filtration.

Experimental data:

Coating product Efficiency [%] Drift [kg/m²]
High solid bake-dry enamel 99.7 9.6 [at 90 Pa]
Water-soluble bake-dry enamel 98.5 7.56 [at 120 Pa]
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EUROSUPRA Paint Overspray Collector S2

EUROSUPRA Paint Overspray Collector S2

EUROSUPRA Paint Overspray Collector S2 is the same as “S1”, but with a more open postfilter.
These multilayer filters feature high efficiency and high concentration and are suitable for high efficiency one stage filtration or final filtration.

Experimental data:

Coating product Efficiency [%] Drift [kg/m²]
High solid bake-dry enamel 98.5 11 [at 50 Pa]
Water-soluble bake-dry enamel 97.5 9 [at 120 Pa]
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HIGH CAPACITY EUROSUPRA Paint Overspray Collector HCS1

Filtri Multistrato raccoglivernice© High Capacity Eurosupra©1

HIGH CAPACITY EUROSUPRA Paint Overspray Collector HCS1 consists of seven layers of slit and flame-retardant expanded kraft with multistage designed baffle openings and one final filtering layer of synthetic media, made of fine polyester fibers (10 µm) to capture fine particles and provide long service life.

These multilayer filters are suitable for high efficiency one stage filtration or final filtration.

HIGH CAPACITY EUROSUPRA Paint Overspray Collectors combine High-Capacity Mini-Mesh and Supra Mini-Mesh Collectors advantages with high efficiency and very high holding capacities.

HIGH CAPACITY EUROSUPRA Paint Overspray Collectors HCS1 offer the highest arrestance.

Experimental data:

Coating product Efficiency [%] Drift [kg/m²]
High solid bake-dry enamel 99.5 16 [at 50 Pa]
Water-soluble bake-dry enamel 99 14 [at 120 Pa]
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HIGH CAPACITY EUROSUPRA Paint Overspray Collector HCS2

Filtri Multistrato raccoglivernice© High Capacity Eurosupra©2

HIGH CAPACITY EUROSUPRA Paint Overspray Collector HCS2 consists of seven layers of slit and flame-retardant expanded kraft with multistage designed baffle openings and one final filtering layer of synthetic media, made of fine polyester fibers (20 µm) to capture fine particles and provide long service life.

These multilayer filters are suitable for high efficiency one stage filtration or final filtration.

HIGH CAPACITY EUROSUPRA Paint Overspray Collectors combine High-Capacity Mini-Mesh and Supra Mini-Mesh Collectors advantages with high efficiency and very high holding capacities.

HIGH CAPACITY EUROSUPRA Paint Overspray Collectors HCS2 offer good arrestance with exceptional holding capacity and service life.

Experimental data:

Coating product Efficiency [%] Drift [kg/m²]
High solid bake-dry enamel 98.5 16.96 [at 50 Pa]
Water-soluble bake-dry enamel 97.5 14.8 [at 120 Pa]
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HIGH CAPACITY MM + 2MM Paint Overspray Collector HC_2M

HIGH CAPACITY MM + 2MM Paint Overspray Collector HC_2M

HIGH CAPACITY MM + 2MM Paint Overspray Collector HC_2M consists in seven layer of flame-retardant expanded kraft, with three final back layer in mini-mesh, con maglia finale mini-mesh.

These multilayer filters are suitable for high efficiency one stage filtration or final filtration.

Experimental data:

Coating product Efficiency [%] Drift [kg/m²]
High solid bake-dry enamel 99.6 8.5 [at 250 Pa]
Water-soluble bake-dry enamel 99.2 9 [at 250 Pa]
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