We have received several questions about plastic bags. In particular, what is the difference between high density (HD) and low density (LD) bags. Let's try to highlight the differences between the two and the uses that can be made for each.
HD VS LD
The bags we sell, whether high density or low density, are made of polyethylene. It is their manufacturing method that differentiates their characteristics, uses and price.
Low density polyethylene (LDPE) bags are thicker, more flexible and stretch more. When you put sharp objects in them, they are less likely to puncture. They are also less noisy than high density bags. However, their price is a bit higher. We usually offer them in white or grey.
High density polyethylene (HDPE) bags are thinner, stiffer and noisier than low density bags. They are easier to tear or break when sharp objects are placed in them. On the other hand, they are less expensive than low density bags. We only offer them in white.
In general, high density bags are preferred when heavier loads need to be contained. Indeed, the low density bags will tend to stretch when heavier loads are put on them, while the high density bags hardly stretch at all.
Oxo-biodegradable bags are similar to high density bags. An additive has been added in the manufacturing process to allow the bags to be biodegradable.
Both types of bag are generally suitable for most uses. Here are some tips to help you make the best choice.
High density :
Preferable for heavy loads like tins, glass bottles etc.
Avoid for sharp objects such as the corners of rigid cardboard boxes, or sharp.
Better suited to the smaller budget.
Very versatile but avoid overloading in terms of weight.
We offer several sizes for each type of bag. The dimensions are indicated for each format. Here's how to read the dimensions:
For example for a s4 bag 11'' x 6'' x 21'':
11'' = the width of the bag
6'' = the depth (or gusset) of the bag
21'' = the height of the bag including the straps.
We hope this will help you make your choice and as always, we will be happy to answer your questions: email@example.com