Blackout Curtain Lining Fabric - Neptune

Neptune is a bold, deep ocean blue blackout lining that brings a rich pop of colour to your curtain projects. With a white reverse and saturated woven front, it’s both practical and striking, ideal when you want your lining to add to the overall look, not hide behind it.

Woven from a durable polyester-cotton blend, this 3-pass blackout fabric offers full light protection, flame retardancy, thermal insulation, and even some noise-reducing benefits. It’s got a smooth, structured handle that gives your curtains extra body helping them hang beautifully while adding a more luxurious finish.

Perfect for use as a traditional lining or as a standalone curtain fabric in smaller spaces like caravans, boats, or home offices. We also love it for bedrooms or nurseries where you want to reduce light in the evenings without sacrificing style.

The Details:
Fibre Content: 52% Polyester, 48% Cotton
Width: 137cm / 54 inches
Weight: 300gsm / 8.8oz per square yard
Opacity: 100% blackout
Performance: Flame retardant, thermal, light protection, colour fastness to light 3–4
Care Instructions: 40°C short cycle wash, do not bleach, do not tumble dry, cool iron on non-coated side only, dry clean (P sensitive)
Recommended Needle: Universal 90/14

At Truro Fabrics, we’re passionate about soft furnishings and the art of turning houses into homes. From our extensive interiors showroom in Cornwall, we offer one of the UK’s largest collections of curtain and upholstery fabrics plus a bespoke, made-to-measure service for curtains, blinds, and shutters. Whether you're DIY-ing or dreaming up something custom, we're here to help bring your vision to life.

Note: Since every computer monitor and mobile device is different, we cannot guarantee the colour will be an exact match to what you see online. Make use of our Swatch Service to ensure this fabric is suitable for your project.