Recognize the Signs of Low-Quality Lightweight Bricks Before Buying

Lightweight bricks are currently one of the most popular materials for building houses and buildings due to their light weight, quick installation, and neat finish. However, not all lightweight bricks are created equal.
If you're not careful, you could end up with low-quality lightweight bricks, which can affect the strength and durability of your building.
Here are some signs of lightweight bricks that you should avoid before deciding to buy.

1. Uneven Surface and Many Holes
One of the most easily identifiable signs of low-quality lightweight bricks is a rough and uneven surface.
Good lightweight bricks have a smooth surface, sharp corners, and fine pores.
If there are many holes or large pores, this indicates an uneven mixing process and can make it difficult to plaster the wall properly.

2. Uneven Color
Lightweight bricks should have a uniform light gray color across their entire surface.
If the brick's color appears patchy or has darker areas, it indicates an incomplete firing or drying process. This can reduce the brick's compressive strength and make it prone to brittleness during use.

3. Easily Crushed When Pressed
Try pressing a lightweight brick with your hand or dropping it from a height of about 1 meter. If the brick cracks or shatters easily, its quality is questionable.
Good lightweight bricks have high compressive strength, are not easily broken, and remain intact even after light impacts.

4. Weight Too Light for Standard
Although they are called "lightweight bricks," lighter weight does not mean better.
Bricks that are too light usually have low density, meaning they contain many air cavities. This reduces the bonding between the bricks and makes the wall structure less sturdy.
Quality lightweight bricks typically have a density between 600–800 kg/m³.

5. Lacks SNI Certification or Quality Testing
Before purchasing in bulk, ensure the lightweight bricks you choose have Indonesian National Standard (SNI) certification or at least laboratory testing for compressive strength and water absorption.
Professional manufacturers usually include the SNI label, factory name, and production date on the packaging or in product documentation.

6. Prices Far Below Market Price
Price is certainly an important consideration, but lightweight bricks priced too low are suspect.
It's likely the raw materials used are substandard, or the production process doesn't undergo strict quality control.
Rather than regretting it later, it's better to buy from an official and trusted distributor who guarantees product quality.

Conclusion
Choosing lightweight bricks shouldn't be done carelessly. Pay attention to the surface, color, weight, and certification before purchasing to ensure you get strong, neat, and durable material.
High-quality lightweight bricks will simplify installation, save time, and ensure a sturdy building structure in the long term.

To ensure you get the best product, entrust your project needs to PT Intisumber Bajasakti (ISBS) — a trusted supplier in Indonesia that provides SNI-certified lightweight bricks and various other building materials.

📞 Phone: 021-66675999
🌐 Web: intisumberbajasakti.com
✉️ Email: info@intisumberbajasakti.com