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!!
9 years ago
AG Woodcare Products Ltd has a
4.8
average rating
from
2,347
reviews
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