flame-retardant details

Shield Flame Retardant

How to apply Shield Flame Retardant to any kind of fabric, Paper and Wood and make it ‘flame proof’, ‘flame retardant’, ‘flame resistant’ , ‘fire proof’ etc. etc. (any material that can absorb chemical can be Flame Retarded)

1. Items you should have (for fabric) ……

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Shield Flame Retardant (fabric)Contd ….

1. i.Chemical

ii. Spray machine (available at Most hardware stores)

iii. Open space under sun where wet fabric can dry

(If treatment is done indoors there should be proper heating arrangement for drying wet fabric if quick drying isneeded as it will take longer at normal room temperature.)

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Shield Flame Retardant (fabric) contd.….

2. Open chemical can, shake it well, pour Chemical in the spray machine

Pump up pressure.

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3.Testing of Dose: Since Different fabrics have different weights and different ratios of cotton / polyester, they need different doses of chemical. It is important to find out appropriate dose of chemical to avoid wastage of chemical, over-treatment of fabric and also get desired Flame Retardancy.

a. Take 4 or 5 small strips of same fabrics and keep them one after another.b. Do one round of spray evenly on all of them.c. Remove one strip and then do another round of spray d. Remove second strip and then do third round of spraye. Repeat above till last strip.f. Now you have one strip with one coat, second with two coats, third with three coats and so on.g. Once all of them dry, start testing with first strip i.e. with one coat and find out which one is giving good flame retardancy. If for example third strip is giving good retardancy, three coats are appropriate dose for fabric.

1 2 3 4 5

2 3 4 5

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4. Before going in production, do another test on a small piece of fabric, spray to make it well wet with appropriate number of coatings as found out in previous test and ensure it is color fast i.e. color does not bleed.

Let it dry under sun (or with the help of hair drier etc.). Once dry put on a candle flame and fabric should not catch fire. It should only blacken. Polyester fabric will blacken and hot drips will happen)

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5. Once tested, keep the production fabric ready for treatment and lay it appropriately on the surface or floor (DO NOT HANG THE FABRIC AS IT WILL RESULT IN UN-EVEN TREATMENT)

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6. Start the treatment, spray chemical on the fabric moving nozzle at appropriate number of times (as per 3) to ensure fabric is well and evenly wet.

One litre of chemical should give approx. 80 sft. of coverage of 250gsm fabric. Lighter fabric will give more coverage and heavier fabric lesser.

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7. Leave the fabric as it is (i.e. laid on floor or surface) to let it dry a bit. Do not hang the fabric, as hanging will bring the chemical content down, dripping and thus result in an un-even treatment.

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8. Once chemical content has dried out and fabric is only damp (not drenched), it can be hanged for further drying as it will release space in the production area.

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9. Once completely dry, fabric has been treated. Roll it back, and it is ready to use.

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PaperFollow the same process from 1 to 9 in the previous slides.

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Wood Normally there are three kinds of wood:

a. Wooden Logs

b. Plywood

c. Commercial boards

Thumb rule is wood should be raw i.e. not painted, polished etc. so the grains are not blocked and wood is able to absorb chemical. More the absorption, better flame retardancy.

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Shield Flame Retardant (wood) contd.….

a. Wooden Logs:

The logs should be immersed in chemical using a drum or tub of appropriate size for at least 24 hours so that chemical gets absorbed as much as possible. Harder wood (Iike teak) may take a bit more time. Long sized logs would need to be immersed up side down when one side has been treated.

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b. Plywood:

Since plywood can’t be immersed due to sheer size, it needs to be coated with chemical (i) both sides and (ii) at least three times one after another giving time to dry after each coat. Apply one coat, once dry apply second one and again after drying apply third one.

Since the application is done both sides chemical is likely to be absorbed well and give plywood required flame retardancy.

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c. Commercial Boards:

Due to sheer size and thickness only way commercial boards can be flame retarded is to cut these into sizes in which these need to be finally fixed.

If feasible and required size of tubs / drums available, immerse these into chemical (like wooden logs) for at least 12 hours. If process followed, these will become appropriately flame retardant.

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Shield Flame Retardant Contd ….

Thank you.

For any clarifications please do get in touch with us.

www.mags-novel.com

[email protected]

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http://www.mags-novel.com/

mailto:[email protected]

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