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Recycled Gypsum NZ Information


Gypsum is a soft sulfate mineral and is widely used as a fertiliser, compost or cement additive. It's also used as the main constituent in many forms of plaster, blackboard chalk and plasterboard.

Recycled gypsum starts as plasterboard off-cuts, supplied by our building and construction partners. Our waste processing facility mechanically separates the gypsum from the paper in the plasterboard off-cuts.

Bulk recycled gypsum ends with the horticulture and agricultural industries as a 100% natural additive to fertiliser and compost. It can also be applied directly to the ground as a soil conditioner.

The construction and demolition industries create 50% of all waste in New Zealand. More than 70% of the waste produced from a construction site is recyclable.

We're proud supporters of product stewardship. That means we're taking responsibility for the products we make, sell and buy, so they don't end up in a landfill.

Green Gorilla's Construction and Demolition Waste Processing Facility diverts over 75% of incoming waste from construction, demolition, building and renovation waste from Auckland's landfills. We additionally work on a wood-chipping activity that transforms chemically treated wood into biofuel and untreated wood into an excellent quality landscaping chip. 

Are you in the construction, demolition, building or renovation industry? Start using Gorilla Bags for your plasterboard waste and divert it away from the Auckland landfill.

 Please note: the minimum order quantity is a 1-tonne bag.


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Gloved hands holding small chunks of plasterboard waste pile of old plasterboard and orange materials handler in storage

Horticultural Benefits of Recycled Gypsum

Gypsum is a naturally occurring mineral that is a significant component in the manufacture of plasterboard. Thanks to Green Gorilla, Gypsum is getting a new lease of life. Recycled or reclaimed Gypsum is used to improve growing soil and boost horticultural crops.
Recycled Gypsum has improved New Zealand's agricultural soil for many years. It provides a moderately soluble source of calcium and sulphur essential to plant growth and good crop yield.
Now, with the availability of Green Gorilla recycled gypsum, it's less expensive and more environmentally friendly than ever to use this valuable, naturally occurring mineral.

Improve Soil Properties with Gypsum
In addition to improving plant growth and increasing crop yields, recycled Gypsum can also condition the soil and enhance plant growth conditions.
Agricultural lime is often used to correct soil acidity and lower soil pH; however, lime's effectiveness is limited to the zone of incorporation. Gypsum is often a better alternative to lime since its solubility promotes greater penetration of the calcium throughout the soil, controlling acidic soil more effectively.

Gypsum is a Natural Additive to Compost
Recycled Gypsum is an all-natural way to enhance compost, whether you're a backyard gardener or a commercial composter. Gypsum naturally reduces nitrogen losses, improving compost aeration, increasing heat, enhancing microbial growth, and reducing unpleasant odours. Adding a gypsum additive also provides calcium, sulphur, nitrogen, and trace minerals to the essential compost, making it more valuable.
Green gorilla provides Auckland Recycling & Waste Solutions for businesses and organisations that want to improve their sustainability outcomes.

For Recycled Gypsum NZ Information, contact Green Gorilla today.

Two hands scooping recycled gypsum out of a white bucket Half an avocado held in a hand and being cut with a knife


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Hosted by Green Gorilla CEO Elaine Morgan, the video takes a look behind the scenes of our operation.

The uptake of green building techniques in the construction industry has helped better manage the number of waste materials, however, it still creates large amounts of waste that can be recycled and diverted from New Zealand landfills. This is where our specialist waste processing facility is a vital link in processing to reduce landfills and create recycled by-products.