Large Alphabet Letter Moulds are now available in larger sizes for even more creative possibilities! Whether you're an artist, DIY enthusiast, or small business owner, these durable moulds are perfect for making customized 3D letters that stand out. When you purchase our larger silicone letter moulds, you’ll receive a FREE MasterCast 1-2-1 400g Resin Kit – everything you need to start creating beautiful, high-gloss, professional-quality designs.

What’s Included

Larger Silicone Alphabet Letter Moulds: Flexible, durable molds designed for casting resin, plaster, clay, or other materials. The larger size makes them ideal for standout décor, signage, and unique custom gifts.

MasterCast 1-2-1 400g Resin Kit (FREE!): Our bestselling high-gloss resin is easy to mix, self-leveling, and perfect for use with your new letter molds. MasterCast 1-2-1 offers stunning clarity and long-lasting results.

Key Features

High-Quality Silicone: The flexible, non-stick moulds ensure easy release and can be reused again and again.
Large Size for Big Impact: Perfect for creating standout pieces – from bold wall art to unique business signage.
Versatile Applications: Ideal for resin, plaster, concrete, wax, and more. Get creative with personalized gifts, home décor, branding, jewellery, and educational tools.
15.24 x 14cm/6 x 5.51inch(H*W); Colour: Pink

FREE DELIVERY TO UK MAINLAND

MasterCast 1-2-1 Clear Art Coating Resin has been ASTM certified and utilises the most up to date UV inhibitors/blockers.

MasterCast is a two part epoxy resin with an easy 1:1 mix ratio by volume. The resin self levels to form a perfectly flat and shiny finish. Once cured, MasterCast provides a clear art coating resin that won't shrink or distort over time. It can be applied by pouring or by brush/roller and cures at ambient temperature. It has excellent UV resistance, clarity and transparency making the resin system particularly suitable for the protection and decoration of: paintings, artwork, sculptures, badges, photos or just about any creative project. Please be advised although our resins are UV stabilised this does not mean they are U.V proof. Ultimately all our clear epoxy resins will show signs of U.V degradation over time. We work constantly to improve the UV protection however resins are plastics and over time the sun will always win that battle.

Solvent and odour free
Safe to use - ASTM certified
High build formula
Exceptional UV resistance
Non-flammable

Pack Sizes

This pack in MasterCast comes in 1 size. To go for a higher pack size, please view our dedicated MasterCast page. Please note the offer with the Large Letter Mould does not apply to MasterCast Pack Sizes bigger than 400g.

MasterCast Pack Size	Coverage at 0.5 mm thick
400g Tester	0.572 m²

Please note this resin has a heat distortion temperature of 45-50°C which makes it unsuitable for the placement of very hot objects on its surface such as cups, mugs, plates etc. We recommend UltraCast ^xt for excellent temperature resistance.

Application video for MasterCast 1-2-1 Clear Art Coating Resin

Specifications
Mix ratio	by volume: 100 parts resin to 100 parts hardener by weight: 100 parts resin to 90 parts hardener
Surfaces	canvas, wood, MDF & glass
Curing time	touch dry in 6-8 hours at 22°C, full cure in 5-7 days
Coverage	1 litre of the mixed product will cover approx. 1.43 m²@ 0.5 mm thick (1kg = 1 litre)
Pot Life	25-30 minutes at 22°C (250g mixed mass)
Shelf life	one year in sealed containers

Mixing

The mixing ratio must be accurately followed to achieve perfect results. It is not possible to change the ratio which would result in the resin not drying properly and lower mechanical properties.

The mixed components should be thoroughly stirred for 3-4 minutes to ensure an even consistency. Epoxy systems tend to heat up faster in a pot than as a thin film, only mix the amount needed for use within the pot life of the product.

Application

The product can be applied by pouring from the mixing vessel, by brush or roller. The mixed resin can be tinted with our resi-TINT pigments, resi-METAL or resi-TINT+ Metallic Powders to make your artwork pop. resi-BLAST will add stunning cells and effects.

Health & Safety

Our resins are 100% synthetic, they DO NOT contain animal parts or any organic content.
No testing is done on animals whatsoever. Our resins are Vegan friendly and cruelty free.

Although our resins are formulated with the most modern and safest epoxy chemicals available, all epoxy resins are chemicals and should be managed and handled with proactive safety hygiene and responsible care.

Always wear nitrile gloves (or use a specialist resin barrier cream)
Wear a respirator when sanding partially cured resin
It is advisable to work in a well ventilated room
We advise the use of safety goggles
Avoid skin contact (if resin gets on skin wash with plenty of soap & water)
DO NOT eat, drink or smoke while working
In case of eye contamination wash with plenty of water for 15 minutes and consult medical advice immediately
Acute Tox. 4: H302; Aquatic Chronic 3: H412; Skin Corr. 1A: H314; Skin Sens. 1A: H317

Adding inks/paints/mica powder/glitter to epoxy resin will change its properties. If you use alcohol inks DO NOT use a flame to remove bubbles, as alcohol is flammable.