The Montana ACRYLIC Marker 15mm is a high quality water based paint marker available in 26 vibrant colors and varnish gloss that match to corresponding colors in the Montana GOLD spray paint series.* The highly pigmented paint is light-fast, high covering, water-resistant and abrassion proof allowing application to almost any surface. The optimum flow control pump-valve system allows accurate handling and application. The transparent marker bodies allow for easy assesment of remaining marker content. Replacement tips are seperately available. The solvent free ACRYLIC Marker range is ACMI approved and carries the AP mark of non-toxicity. Can be used on almost any surface, best results on even surfaces. Ideal for interior use - for exterior use, please use Montana GOLD Varnish for sealing. Make sure to apply only on dry and clean surface. Alternative tips are seperately available in sizes: 15mm standard & 15mm multi line. Ideal for interior use - for exterior use, please use Montana Varnish to seal and increase longevity. For best results in sealing we recommend to use Montana Varnish spray that are compatible to ACRYLIC paint. When working with other varnishes please test always before application - it might not be compatible. * Color matching: Due to a different paint base between ACRYLIC markers (water-based) and Montana GOLD spray paint (solvent-based), for best color matching results apply a coat of Montana Varnish Gloss for one even finish. Slight differences may appear due to used substrate or ground. 100% color match is not guaranteed. Always test before use!