About humidity.

[Minhas Arshad]

Dear Experts,

I would like to ask from experts, how much himidity and dew point is allow for sand blasting Sa 2.5 in cloudy condition? 

[vinod kumar]

Dear Mr. Arshad,

generally when RH is more than 85%, blast cleaning activities are not recommended.

Substrate temperature shall be at least 3 deg C above the Dew point temperature.

On Thu, Aug 22, 2019 at 9:24 AM Minhas Arshad <minhasa...@gmail.com> wrote:

Dear Experts,

I would like to ask from experts, how much himidity and dew point is allow for sand blasting Sa 2.5 in cloudy condition? 

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Thanks and Best regards

M. Vinod Kumar

"Never Explain yourself to any one Because the person who likes you doesn`t need it, and the person who dislikes you won`t believe it."

[Minhas Arshad]

Dear Mr. Vinod,

Can you please confirm the reference about humidity and dew point temperature for sandblasting Sa2. 5.

Regards

Minhas Arshad

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[Dhanabal Jalachandran]

Dear Mr. Arshad,

Be specific, as humidity values changes according to the Paint System. Refer the Paint Manufacturer data Sheet for exact values as Zinc Silicate has a different mininum humidity requirement and Epoxy has a different. 

Hope your query is solved.

Thanks

Dhanabal Jalachandran

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CANOHF6vpnBp8jc%3DXOcwq4CAkMkEtQ5koUmytdY_41bhvnDZH%3DA%40mail.gmail.com.

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Regards

Dhanabal Jalachandran

[Chaitanya Purohit]

Dear All,

Pl note that, "SAND" is now prohibited in almost all around the world for blasting. 

We shall not used this term. 

"Blasting" is enough to understand and communicate. 

Some answers I saw given " it depends on Painting scheme" but the question was regarding Blasting not painting. 

For blasting RH shall be 60 or below. 

Regards.

On Thu, 22 Aug 2019, 09:24 Minhas Arshad, <minhasa...@gmail.com> wrote:

Dear Experts,

I would like to ask from experts, how much himidity and dew point is allow for sand blasting Sa 2.5 in cloudy condition? 

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