The service was excellent. The oxalic crystals were a bit difficult to dissolve even in warm water. Gave the wall 2 sprays. Rust is fading will need another spray. The rust was caused by ferrous sulphate heptahydrate. Oxalic Acid is the only product to work against the rust.
Thank you!!
10 years ago
AG Woodcare Products Ltd has a
4.8
average rating
from
2,347
reviews
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