Since the Acrylic Colour is only slightly water-resistant and not waterproof, the rain will ruin it. Also, if you have not treated the surface in any way and the colour is still wet, the rain can wash away the acrylic colour.

Acrylic Colours usually darken in tone as they dry, making colour matching difficult.

Acrylic colours can contain toxins in their pigments, just like oil paints.

To clean acrylic paint from brushes, rinse under running water, mix mild soap/brush cleaner with water, swirl the meeting in the solution and rinse again. Repeat if needed; apply conditioner and rinse. Reshape bristles, and lay flat on a towel to dry. Avoid standing the brush upright to prevent water damage. Proper cleaning extends brush life.

Acrylic paint is water-resistant, flexible, and dries quickly, making it an excellent choice for fabric painting. Pre-wash fabric to remove sizing, then apply acrylic paint directly using a brush, sponge, or applicator. Once dry, heat-set the colour per the manufacturer's instructions to ensure durability. Use acrylic paint to add colour and personalization to fabric items like t-shirts, tote bags, and canvas shoes.