1．Product Property

This covering is light density, thin thickness of application, sound fireproof and simple application, single covering. It is suitable for covering of class A-30 fire decks of accommodations, machinery spaces, control spaces and damp cabins.

2．Structure

3．Specification

 

 

4．Packing Specification and Use Level（calculated according to each square meter with layer thickness of 25mm）

 

 

5．Application Condition

 All the cables, pipes, and embedded parts installations in the cabins are to be finished beforehand.

Impurities such as Iron, rusts and paints on the primary steel plates are to be removed meanwhile the surface preparation is carried out according to the requirements of CB3230 Grade P2 or ISO8501-1.1988 st2.

 

6．Blending Ratio and Method

 Blend ratio of the light deck covering: one pack of setting promoting powder matching with one bag of stuffing aggregate. Add about 6-8kg clean water.

Method of preparation: feed the setting promoting powder and the light stuffing aggregate into the agitator and stir evenly, add water in proportion as 6-8kg for each set, then stir, the covering is ready when the mixture is in the state like thick mud.

 

7． Application Procedure

 Pour the mixed covering onto the clean steel decks, leveling, consolidating and trimming it with a towel, and the covering thickness should be not less than 25mm.

Eliminate the flow marks and flow seams with a towel to make the surface flush. generally a cabin should be accomplished with covering from the inner side to the doorway.

 

8． Attention

The water amount in the component blending ratio of NQH-IV covering is given under ambient temperature, this amount can be adjust according to the actual thickness of the mixtures as the temperature and the application methods vary.

The application of mixed covering should be finished within 30 minutes. If the covering is stirred by manually, it should be stirred evenly.

When the covering hardened, it should be kept for maintenance for 2 to 3 days with spray of water or maintaining agent on its surface.

In the whole maintenance and application period, the environmental temperature may be a range 5℃ -30℃, lowering the temperature if the temperature is higher than 30℃ or heat preservation measure is to be taken if the temperature is lower than 5℃ .

All materials are to be stored free from sunlight, rain dip and under the specified temperature. The quality assurance period of the covering is 4 months.