Glycols & glycol ethers
Glycols, polyglycols and their ethers and ether acetates — properties, grades and where each one fits in a formulation.
Application notes, material explainers and process guidance written around the chemicals we manufacture and export.
DBAC in baked coatings: flash-off, popping and residue
A high-boiling ester-ether behaves differently in an oven than on a drying rack; the oven is where its cost and its defects…
Butyl glycol acetate: roles, limits and substitution
Ethylene glycol butyl ether acetate does one job well and fails in one predictable way; both are worth understanding before ordering.
Dipropylene glycol as a fragrance diluent: what LO means
Why the perfumery trade settled on one diol as its default carrier, and what a low-odour suffix does and does not guarantee.
PMA in PCB ink: pinholes, orange peel and clogging
Why a mid-evaporation propylene-series acetate is specified for circuit board inks, and which lot properties decide the print quality.
PEG 200 to PEG 8000: what the grade number means
The number in a PEG grade name is a nominal average molar mass, not a formula. Confusing the two is the commonest…
Polypropylene glycol: grades, properties and uses
PPG is a family of polyether polyols rather than one substance, and the grade code carries the information a specification actually needs.
Isopropyl alcohol grades for cleanrooms
Why cleanrooms specify isopropyl alcohol, which grade and paperwork to demand, and why 1-propanol shares its formula but not its eye hazard.
Dosing butyl diglycol in a waterborne coating
Choosing the level of a slow coalescent is an experiment, not a lookup. How to run the ladder, and which defects it…
Tripropylene glycol: a distillation cut, not a molecule
What the name hides: an isomer population and an oligomer tail. Hydroxyl value, not assay, is the number that predicts behaviour.
Dipropylene glycol as a reactant, not a diluent
Half the market dissolves things in it; the other half builds it into a polymer. The second purchase has a different specification.