Squires Mexican Modelling Paste Instant Mix - 250g Squires Mexican paste instant mix is ideal to keep in the cupboard for whenever you may need it. White Squires Mexican Modelling paste mix is a paste mix to add water to, for all modelling including figures, animals etc, frills, drapes and bas-relief work where a stronger paste is required to hold its shape. Mexican modelling paste sets firm, but remains soft enough to eat - ideal to use in moulds.  Easy to use - simply add water, Mix with food colourings to achieve a colourful paste.