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Latex foam is a foam made from latex, either natural latex (the sap of the rubber tree, Hevea brasiliensis) or synthetic latex. It is known for its elasticity, durability and breathability, making it a popular choice for mattresses, pillows and furniture cushions.
This guide covers where latex comes from, how latex foam is made, its properties and its main uses.
| Natural Latex Foam | Synthetic Latex Foam | |
|---|---|---|
| Source | Sap of the rubber tree | Petroleum-based chemicals |
| Key properties | Elastic, durable, breathable; resists dust mites, mould and mildew | Less expensive and more consistent in quality |
| Sustainability | Renewable raw material; more biodegradable | Made from non-renewable resources |
| Typical uses | Mattresses, pillows, bedding | Furniture cushions, commercial applications |
Latex comes from the rubber tree, Hevea brasiliensis, which is native to South America. Its sap, known as latex, is the main raw material for natural latex foam. The rubber tree is a renewable source of latex, as it can be tapped for many years (typically up to around 30) without being felled.
Latex has been used since ancient times, but the process for making latex foam was developed in the 20th century. This combined the natural elasticity of latex with the comfort and cushioning of foam.
Latex is harvested by making a shallow cut in the tree’s bark and allowing the latex to slowly drip out. This process, known as tapping, is typically carried out in the early morning, when the flow of latex is at its peak.
The collected latex is then processed to remove impurities and concentrate the rubber content, ready to be made into foam.
Vulcanisation is a chemical process in which latex is heated with sulphur to create a more durable, elastic material. It was first developed by Charles Goodyear in the 19th century and has since been adapted for making latex foam.
To make latex foam, the liquid latex is first whipped or expanded to introduce air, then poured into a mould and heated. Vulcanisation sets the foam structure, producing a material that keeps the natural elasticity of latex while providing the cushioning and comfort of foam. See our guide to foam molding for more on moulded foams.
Latex foam’s key properties are elasticity, durability, breathability and resistance to dust mites, mould and mildew.
Latex foam’s open-cell structure allows good air circulation, helping to regulate temperature and prevent heat building up. This makes it a good choice for bedding.
Latex foam naturally resists dust mites, mould and mildew, which can make it a good choice for people sensitive to these allergens. However, natural latex itself can cause reactions in people with a latex allergy, so anyone with a known latex allergy should check with the manufacturer before buying.
Latex foam is most commonly used in mattresses, pillows and furniture cushions, but it is also used in automotive and healthcare products.
Latex mattresses and pillows are valued for their comfort, support and durability. The elastic foam provides a responsive surface that conforms to the body, relieving pressure points and helping to keep the spine supported, while its breathability helps to keep sleepers cool.
In furniture, latex foam is used in cushions for sofas, chairs and other seating, where its durability and comfort make it a popular choice for high-quality upholstery and custom cushions. It has also been used in car seats and headrests for comfort and support on long journeys.
Its open-cell structure also helps to absorb sound, which means it can contribute to noise reduction.
In healthcare, latex foam is used in orthopaedic pillows and mattresses to provide support and comfort, and in wheelchair cushions to provide pressure relief for people who sit for long periods. It is also used in medical mattresses and cushions.
There are two main types of latex foam: natural and synthetic. Natural latex foam is made from the sap of the rubber tree, while synthetic latex foam is made from petroleum-based chemicals. Many products also use a blend of the two.
Natural latex foam is made by harvesting, processing and vulcanising rubber tree sap. It is known for its elasticity, durability and breathability, and resists dust mites, mould and mildew.
One of its main benefits is sustainability: the rubber tree is a renewable resource, tapping does not require the tree to be felled, and natural latex foam is more biodegradable than synthetic foams.
Synthetic latex foam is made from petroleum-based chemicals using a process similar to that for natural latex foam. It is less expensive and more consistent in quality, making it a popular choice for commercial applications, car seats and furniture cushions, although it does not offer all the natural benefits of natural latex.
Latex foam is a versatile material valued for its elasticity, durability and breathability. From mattresses and pillows to furniture and healthcare products, understanding the differences between natural and synthetic latex will help you choose the right foam for your needs.
Continue exploring foam types and properties across our technical glossary:
If you are considering latex or another foam for cushions, seating or mattress toppers, the Foam & Covers team can help you compare options and cut your chosen foam precisely to your measurements.
Contact Our Foam Specialists or Order Custom Cut Foam Online .
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