mgo board,fireproof board,waterproof board

 ALL LEVELS OF MGO BOARD TABLE

NO.

Level

Comparison item

GRADE A with sanded

GRADE A without sanded

GRADE B

GRADE C

1

magnesium board composition

Magnesium oxide (activity 85%), magnesium sulfate, wood chips, silicon carbide, low-alkali glass fiber mesh,modifier

Magnesium oxide (activity 85%), magnesium chloride, sawdust, perlite, alkali glass fiber mesh, modifier

Magnesium oxide (activity 80%), magnesium chloride, sawdust, perlite, high alkali glass fiber mesh, modifier

Magnesium oxide (activity 70%), magnesium chloride, sawdust, perlite, high alkali glass fiber mesh

2

Process

Choice of materials, ingredients, foam, molding, mold release (24 hours), trimming, natural maintenance (28 days) shipping.

The choice of materials, ingredients, foam, molding, mold release (12 hours), trimming, natural maintenance (10 days) shipping.

Choice of materials, ingredients, foam, molding, mold release (6 hours), trimming, natural maintenance (3 days) shipping.

Choice of materials, ingredients, foam, molding, mold release (4 hours), trimming, and delivery.

3

Burden calculation

Strictly in accordance with each batch of raw material composition and content, in batches, quantifying, weighing, successive ingredients

According to the ingredients in batches, successive batching

The same ingredients, raw materials, one-time investment

The same ingredients, raw materials, one-time investment

4

Modifier

According to the batches of test results to adjust

Unified formula, fine-adjust

Unified formula, do not adjust

 No Modifier

5

Fiberglass Mesh

Low-alkali glass fiber mesh cloth (density of 7 X 7)

Middle-alkali fiberglass mesh (density of 4 x 6)

High-alkali glass fiber mesh (density 4 X 4)

High-alkali glass fiber mesh (density 3 X 3)

6

Filler

Logs of wood chips, silicon carbide, vermiculite, talc

Wood sawdust, perlite, limestone, ash or talcum powder

Plywood used in wood chips, crop straw and husk, perlite

Plywood used in wood chips, crop straw and husk, perlite

7

Mixing method

Surface pulp, pulp, pulp of the bottom three times stirring, additives, modifiers separate mixing, final mixing

First mixing the slurry; the stirred slurry injection a mixer, add fill material such as second mixing

The governor high-speed mixer, one or more mixers with a molding machine, all stirring once

The governor high-speed mixer, one or more mixers with a molding machine, all stirring once

8

Molding process

Frosted end of the slurry, the surface of pulp in the pulp, four or more layers of glass fiber mesh, without non-woven

Layer of pulp, a pulp level, two or more layers of alkali glass fiber mesh, a layer of non-woven

Two-story high-alkali glass fiber mesh, a layer of syrup, two-story non-woven

Two-story high-alkali glass fiber mesh, a layer of slurry, a layer of non-woven

9

Mold release and conservation

24 hours demoulding, nature conservation 28 days

12 hours demoulding, nature conservation 10 days

6 hours using high-temperature mold release, Nature Conservation 3 days

Use of high temperature 4 hours stripping, nature conservation

10

Sanding

Will been sanded,can use for a positive both of sanding and smooth

Non-sanding, only with the smooth

Non-sanding, only with the smooth

Non-sanding, only with the smooth

11

Accuracy

Computer control of cutting, the thickness error of + /-0.1mm, length and width of error of + /-1mm

Computer cutting, the thickness error of + /-0.5mm, length and width of the error of 5mm

Hand-cutting, the thickness error of + /-0.8mm, the error of length and width of 15mm

Hand-cutting, the thickness error of + /-1.2mm, the error of length and width of 25mm

12

Test

Stringent factory inspection records to ensure that each batch of product can be traced

Factory inspection records to ensure that each batch of product can be traced

Form of inspection records, can not be traced

Inspection, no record

13

Chemical analysis

Complete chemical analysis room, all the raw materials for each test

Complete chemical analysis room, the main raw material for each test

No chemical analysis room, do not know the analysis methods of magnesium oxide (MgO) and magnesium chloride (MgCl2), without inspection of raw materials

No chemical analysis room, without inspection of raw materials

14

Performance

Excellent

General

Poor

Very Poor

15

Application areas

Luxury hotels, office buildings, villas, apartment buildings, walls, ceiling, floor

Low-temperature area for the wall, the plate of the wall, the fire door plate, ceiling, etc.

Fire doors lined plate

Construction site pad, temporary housing

16

Return halogen

The chloride ion content of less than 5%, and definitely do not get damp, not get halogen

The chloride ion content of less than 15 %, will get damp, and sometimes back to halogen phenomenon

The chloride ion content of less than 25% will get damp back to halogen and chalking

The chloride ion content of less than 35%, it will certainly damp back to halogen and powder

17

Useful life

50 years

10 years

1 year

1 month