What ketone and ester solvents does RawSource supply for coatings?

RawSource sources methyl ethyl ketone (MEK) and acetone as fast-evaporating ketones, mesityl oxide as a high-solvency ketone for difficult resins, n-butyl acetate and ethyl acetate as ester solvents for flow and leveling, and butanol as an alcohol co-solvent. All can be quoted in bulk with CAS on request.

Why blend fast and slow solvents in a coating?

Evaporation rate sets dry time and film quality. A fast solvent such as acetone or MEK speeds handling but can cause solvent pop, blush, or poor leveling if it leaves before the film levels. Slower esters like n-butyl acetate are blended in to restore flow and gloss, so most coatings use a blend across evaporation rates.

Are these solvents flammable?

Yes. The ketone, ester, and alcohol solvents in this family are flammable and must be stored, handled, and ventilated according to their safety data sheets and applicable fire codes. Always review the SDS for flash point, exposure limits, and handling requirements before use.

ケトン系・エステル系溶剤

概要

ケトン系・エステル系溶剤は、溶剤系塗料、ラッカー、設備洗浄で主力となる蒸発の速い溶剤です。 They dissolve a wide range of resins and flash off quickly, which largely sets a coating's dry-to-touch time. Methyl ethyl ketone (MEK, CAS 78-93-3) is the benchmark fast ketone; acetone (CAS 67-64-1) evaporates faster still and doubles as a cleanup solvent. Match evaporation rate to the application method: spray lines tolerate faster solvents than brush or roller work, where a fast solvent can leave before the film levels.

The trade-off is real. A faster solvent gives quicker handling and an earlier hard film, but it can also cause solvent pop, blush in humid air, or poor flow if it evaporates before the coating levels. Slower esters such as n-butyl acetate (CAS 123-86-4) are blended in to restore leveling and gloss; ethyl acetate (CAS 141-78-6) sits between the two. Build a solvent blend across evaporation rates rather than relying on one fast solvent, and adjust the blend for shop temperature and humidity.

Mesityl oxide (CAS 141-79-7) is a high-solvency ketone reserved for difficult resins, and butanol (CAS 71-36-3) is an alcohol co-solvent that aids flow and coalescence. Specify the high-solvency grades only where standard ketones fall short, since they cost more and evaporate slower. Every solvent in this family is flammable and should be stored, handled, and ventilated according to its safety data sheet and local fire code.

推奨化学品

9品目

溶解力クイックビュー

Alcohol co-solvent (flow & coalescence) クイックビュー

溶解力クイックビュー

溶解しにくい樹脂に対応する高溶解力ケトンクイックビュー

メチルエチルケトン（MEK）｜CAS 78

速乾性ケトン溶剤クイックビュー

溶解力クイックビュー

フロー・レベリング用の中蒸発速度エステル溶剤クイックビュー

主な用途

溶剤系工業用塗料、ラッカー、2液型システム向けの混合溶剤
バッチ間の設備、配管、スプレーガンの洗浄
扱いにくいバインダーの樹脂希釈と粘度低減
蒸発の遅いエステル系溶剤によるレベリングと光沢の制御
速い初期乾燥が求められる接着剤、インキ、塗料配合

よくあるご質問

RawSourceは塗料向けにどのケトン系・エステル系溶剤を供給していますか？

RawSourceは、速乾性ケトンとしてのメチルエチルケトン（MEK）とアセトン、難溶性樹脂向けの溶解力の高いケトンとしてのメシチルオキシド、流動性とレベリング性のためのエステル溶剤としての酢酸n-ブチルと酢酸エチル、アルコール系併用溶剤としてのブタノールを調達します。いずれもご依頼に応じてCASを付してバルクでお見積りします。

塗料で蒸発の速い溶剤と遅い溶剤をブレンドするのはなぜですか？

蒸発速度は乾燥時間と塗膜品質を左右します。アセトンやMEKのような速乾溶剤は作業性を高めますが、塗膜がレベリングする前に抜けてしまうとソルベントポップ、ブラッシング（白化）、レベリング不良を招くことがあります。酢酸n-ブチルのような蒸発の遅いエステルを併用して流動性と光沢を回復させるため、多くの塗料では蒸発速度の異なる溶剤をブレンドして使用します。

MEKとacetoneでは、どちらが蒸発が速いですか？

Acetone (CAS 67-64-1) evaporates faster than methyl ethyl ketone (CAS 78-93-3). Acetone is often used for rapid cleanup and where the fastest flash-off is wanted; MEK is the benchmark fast ketone for dissolving a broad range of coating resins. Both are flammable and must be handled per their safety data sheets.

これらの溶剤は引火性がありますか？

はい。このファミリーのケトン系、エステル系、アルコール系溶剤は引火性であり、各安全データシートおよび適用される防火法規に従って保管、取り扱い、換気を行う必要があります。使用前に必ずSDSで引火点、暴露限界、取り扱い要求事項をご確認ください。

出典

免責事項。 Information on this page is provided for general reference and compiled from authoritative public sources (e.g. PubChem/ECHA). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot you purchase governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim. Always consult the current Safety Data Sheet (SDS) before handling, and confirm regulatory status, classification, and suitability for your application and jurisdiction.

ケトン系・エステル系溶剤

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