Black Oxide Colour Bags

Black oxide is a dry pigment that turns cement mortar and render dark, which is how roof tilers match bedding and pointing to black, charcoal and grey roof tiles. This listing is the bulk option, with 12 x 5kg bags or a single 25kg bag, for larger jobs and trade use where the 2kg tub is not enough. The pigment is added to the dry mix before water.

Key Features

• Black oxide pigment for colouring cement mortar and render
• Bulk options: 12 x 5kg bags or a 25kg bag
• Colours mortar to match dark roof tiles
• Dry pigment, added to the mix before water
• Suits full roofs and large masonry jobs
• Cost-effective for trade and contractor use

Specifications

• Product: black oxide colour
• Colour: black
• Options: 12 x 5kg bags or 25kg bag
• Use: colouring cement mortar and render
• Application: roof bedding, pointing and masonry

How To Use It

Blend the oxide into the dry cement and sand before adding water, then mix until the colour is even. Add a small amount and check against the tile, increasing it for a darker result. The bulk bag suits a full roof where the mortar must be consistent across the whole job.

Applications

• Bedding and pointing mortar for dark roof tiles
• Full roof jobs where the colour must stay consistent
• Render and masonry work with a dark finish
• Trade and contractor projects using bulk mortar

What You Need To Complete The Job

Pair the bulk oxide with the mortar ingredients. Mix it with GP cement and brickie sand, and apply with an OX PRO gauging trowel. For a single colour in smaller quantity, use the 2kg oxide tub. Browse the Roof Fixing Supplies range for more.

Frequently Asked Questions

Which bulk option should I order?

The 12 x 5kg option gives you multiple manageable bags for mixing on site, while the 25kg bag is one large bag for bigger batches. Choose based on how you mix and how much mortar the job needs.

How much black oxide do I add?

Start with a small amount in the dry mix and check the colour against your tile, increasing until it matches. The pigment amount varies with the colour depth and batch size, so test on a small mix first.

Will the colour stay consistent across a full roof?

Yes, provided you keep the same pigment-to-mix ratio for every batch. Because the oxide is dry and blends evenly, mixing it into each batch at the same ratio keeps the mortar colour consistent.

Can I use this oxide in render?

Yes. Black oxide colours render and mortar the same way. Blend it into the dry render mix before adding water to get an even dark finish.

Can I order for delivery or pickup?

Yes. You can order online and choose Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. Delivery windows depend on your postcode, and we send a confirmation once your order is ready. For any questions call (03) 93941400 or email orders@singhroofingsupplies.com.au.