▁le ather . ▁At ▁the ▁time , ▁the ▁UK ▁imported ▁lan olin , ▁having ▁no ▁domestic ▁lan olin ▁production ▁at ▁all . ▁ ▁Da we ' s ▁extra ction ▁process ▁failed ▁initially ▁and ▁Da we ▁left ▁the ▁company . ▁Philip ▁Wood , ▁Cro we ' s ▁nep hew , ▁was ▁appointed ▁manager ▁of ▁the ▁site ▁in ▁ 1 9 2 5 , ▁and ▁Wood ▁worked ▁closely ▁with ▁a ▁Belg ium ▁chem ist ▁to ▁develop ▁a ▁new ▁extra ction ▁process . ▁By ▁the ▁end ▁of ▁the ▁year ▁Cro da ▁had ▁successfully ▁produced ▁its ▁first ▁batch ▁of ▁lan olin . ▁ ▁The ▁company ▁strugg led ▁to ▁remain ▁prof itable ▁to ▁the ▁end ▁of ▁the ▁century ▁until ▁a ▁report ▁from ▁the ▁National ▁Phys ical ▁Labor atory ▁was ▁published ▁describing ▁the ▁rust ▁prevent ion ▁properties ▁of ▁lan olin , ▁creating ▁new ▁business ▁opportun ities ▁for ▁the ▁company . ▁The ▁lan olin ▁market ▁was ▁still ▁in ▁its ▁inf ancy ▁as ▁the ▁World ▁De pression ▁began ▁to ▁take ▁hold ▁in ▁Britain , ▁but ▁Cro da ▁was ▁able ▁to ▁expand ▁their ▁domestic ▁market ▁and ▁exports ▁through ▁the ▁ 1 9 3 0 s ▁as ▁Wood ▁ref ined ▁Da we ' s ▁production ▁process ▁and ▁gradually ▁developed ▁a ▁wider ▁range ▁of ▁product ▁applications ▁for ▁lan olin . ▁ ▁To ▁a ide ▁in ▁military ▁production ▁during ▁World ▁War ▁II , ▁Cro da ▁began ▁producing ▁cam ou fl age ▁pain ts , ▁gun ▁lub ric ation ▁and ▁clean ing ▁o ils , ▁insect ▁rep ell ents , ▁and ▁other ▁resources ▁the ▁British ▁Empire