I will have to use this indoors on a beam in my sitting room. How long before I can use the room again?

I would give it a good hour as the smell can be quite intense but I've used it in my bathroom quite extensively and it's dry after about an hour. Then I use the bathroom as normal.

Once applied and dried, can it be painted over?

Yes. Just make sure it is completely absorbed and dried otherwise it will taint the paint.

Do you spritz the wood lightly ..or leave it soaking?

Wet but do not soak. Two coats. Done.

Can i use it on my shed which has been painted with blue wood preserver

As with all woodworm treatments, the recommendation is not to use on painted/ coated wood as it can’t soak into the timber.

Barrettine Premier Woodworm Killer Spray 500ml

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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S$25

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Description

🛡️ Defend your wood, defeat the worm—because your home deserves the best!

FAST ACTING FORMULA - Quickly penetrates wood to eliminate pests before damage spreads.
LONG LASTING DEFENSE - Protects your wooden surfaces with residual effects that endure.
POWERFUL 500 ML SPRAY - Target woodworm infestations with precision and ease.
TRUSTED BY HOMEOWNERS - Highly rated with 4.4 stars from 457 reviews—join the savvy crowd.
PROFESSIONAL GRADE SAFETY - Use biocides safely with clear instructions for confident application.

Barrettine Premier Woodworm Killer Spray is a 500ml professional-grade treatment designed to eliminate woodworm infestations quickly and provide long-lasting protection. Its fast-acting formula penetrates deep into wood, safeguarding your home’s wooden structures. Highly rated by users, this spray combines effective pest control with clear safety guidelines, making it a trusted choice for maintaining the integrity of your wood surfaces.

Specifications

ASIN	B07355NDGD
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	16,758 in Garden ( See Top 100 in Garden ) 266 in Indoor Multi-Insect Control
Colour	Clear
Customer Reviews	4.4 4.4 out of 5 stars (457)
Date First Available	19 Sept. 2017
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Guaranteed software updates until	unknown
Included Components	1 x 500 ml Solvent Preserver Woodworm Killer Trigger Spray
Item Package Quantity	1
Item Weight	470 g
Item model number	SPWW.50
Manufacturer	Barrettine
Material	Oil, Solvent, Water
Package Dimensions	24.5 x 9.8 x 5.1 cm; 470 g
Part Number	SPWW.50
Power Source	ac
Size	500ml

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