kagemusha
A Fixture
I suppose there is always the chance you got some from a bad batch. Not unknown with any make of sable, but less likely with synthetics for the reason Einion gave.
Standard white spirit should never harm a brush as it contains oil anyway, so less wearing than IPA or thinners, as it does not dry out the hairs.
I personally use a drop or two of washing-up liquid in warm water after the white spirit.
Only point I would make is don't use hot water, it should only be tepid.
When you leave them to dry in the air, do you re-form the point on a soft cloth?
Ron
Standard white spirit should never harm a brush as it contains oil anyway, so less wearing than IPA or thinners, as it does not dry out the hairs.
I personally use a drop or two of washing-up liquid in warm water after the white spirit.
Only point I would make is don't use hot water, it should only be tepid.
When you leave them to dry in the air, do you re-form the point on a soft cloth?
Ron