Painting knowledge: Introduction to four construction methods of marine coatings

Jc001.load('iframe') JIFrame.create({ 'url' : '/go.php?action=ads&iframeHeight=250&isIframe=1&key=%CD%BF%C1%CF&pos_id=jc001_news_detail_30&reqkey=1&style=margin%3A15px+15px+ 25px+0%3B+height%3A255px%3Bwidth%3A255px%3B+float%3Aleft%3B', 'height' : 250 })

Ship coating construction method: roll coating method

This type of coating construction method refers to painting with a roller covered with paint. The roller should not be painted too much. The principle of the paint does not overflow the two sides of the roller. When the paint is applied, the roller cannot roll too fast. The roller should be slowly rolled up and down, left and right, and the rough surface and the weld should be specially noticed. Apply the paint brush at the corner. . The roll coating method has high efficiency and is used in large-area painting, but the quick-drying coating cannot be used in the roll coating method.

Ship coating construction method: brush coating method

As the name suggests, it is a staggered vertical and horizontal paint on the surface of the component with a paint brush. The brush has a strong penetrating power, which enables the coating to penetrate into the pores and gaps. When the surface of the steel sheet has moisture, the brush can discharge the water, so that the coating actually adheres to the member, and the brushing also saves coating. However, the brushing method is inefficient and can only be used in small areas, corners and individual places.

Ship coating construction method: no air spray method

This high-tech paint application method means that the paint is sprayed with high pressure, and the paint is forcibly atomized at the nozzle outlet to be sprayed onto the surface of the object to form a paint film. Compared with the spraying method, when the airless spraying is used, the coating has less scattering, high efficiency and a thick coating film, so it is particularly suitable for application in large-area construction. However, when using airless spraying, the technical requirements for labor are high, and fire protection is also required. Almost all shipyards currently use this method for large areas of painting.

Ship coating construction method: spraying method

The spraying method is to atomize the coating with compressed air having a pressure of 3-5 Pa, and spray it onto the surface of the object to form a paint film. The nozzle should be perpendicular to the surface to be coated when spraying, and should be moved up and down in parallel and cannot be swung. When using the spraying method, pay special attention to the surface to be cleaned and dry. Otherwise, the adhesion of the paint will be reduced. The scattering of the paint caused by compressed air and the evaporation of the solvent are many. Pay special attention to the spark. The spraying method has high efficiency and is suitable for use in large-area painting, but the coating scattering causes some coating loss.

Regardless of which coating construction method is used to construct the surface coating of the ship, attention should be paid to the two factors of construction quality and cost saving. However, at present, large shipyards use airless spraying method in surface coating construction, which not only has high working efficiency. And it is not easy to cause loss of paint.

[Follow the WeChat public number "Jiuzheng Paint Network"; pay attention to surprises, scan code to view "If your husband is selling paint..." Jiuzheng Coating Network Exchange Group]

Round Dot Rubber Sheet

Parameters: specific gravity: 1.4-1.7g/cm; breaking tenacity: 3-5Mpa;  elongation:200-300%; hardness: 70 ±5°

Performance: temperature range: -20℃-70℃. good elasticity. wear resistance, waterproof and anti skid, effective anti corrosion;

Usage: this kind of products can be widely used for  laying and decoration of tables, floor and paths in hotels, sports facilities, conference halls, airports, ports, ships,vehicles, etc.

Color: black, gray, brown, blue946232918_680


808076680290971861

Product name

Colour

Product standard

Usage and property

SBR Rubber Sheet

Black,red,blue,

grey,green

GB/T5574-2008

Hardness:low middle high

Pressure:1.6~6.0Mpa

The allowed temperature:min-35℃ max +60℃

Medium:air or water

Usage:Punching washer/gasket ring /seal of the door window.

Acid-resisting Rubber Sheet

Alkali-resisting

Rubber Sheet

Black,red,blue,

grey,green

GB/T5574-2008

Hardness:low middle high

Medium:acidity liquid alkallnity liquid

Function:acid-resisting alkali-resisting

The allowed temperature:min-35℃ max +60℃

Usage:making all kinds of gasket ring/washer bedding equipment or surface.

Oil-resisting Rubber Sheet

Black,red,blue,

grey,green

GB/T5574-2008

Hardness:high

Medium:engine oil,gasoline,lubriacting oil,transformer oil etc.

Function:oil-resisting

The allowed temperature:min-30℃ max +100℃

Usage:punching washer/gasket ring bedding surface of equipment.

Heat-resisting Rubber Sheet

Black,red,blue,

grey,green

GB/T5574-2008

Hardness:low middle high

Medium:steam,air,hot air

Function:heat-resisting,aging-resisting

The allowed temperature:min100℃ max 250℃

Usage:punching all kinds of gasket ring/washer/gasket/board

Insulation Rubber Sheet

Black,red,blue,

grey,green

GB/T5574-2008

Hardness:low middle high

Function:prevent electricity/static electriaty.

The allowed voltage:max 50,000kv

Usage:This products is suitable for use in electriaty,oil chemistry,metallurgy,communication etc(spreading surface of punching all kinds of gasket ring/washer/boards)

Round Dot Rubber Sheet

Round Dot Rubber Sheet,Round Dot Rubber Floor,Round Button Rubber Sheet,Rubber Sheet With Round Button

HEBEI HENGDA SEALING MATERIALS CO.,LTD. , https://www.hengdasealing.com