Polyethylene foam as screening spline
Polyethylene has many desirable characteristics that is why it is used for a wide range of applications. A common characteristic of polyethylene foam is low density so that it easily assumes a semi-rigid structure. No matter the specifications for the Screening spline it can easily be addressed by polyethylene foam. The manner through which polyethylene is manufactured for screening spline is continuous. Foam material is melted and then mixed with a certain kind of halogenated hydrocarbon that acts as a foaming agent. The mixing process is conducted under high pressure before it is fed into a controlled heated screw extruder. From the die opening the mixture emerges and the change in pressure once exposed to the atmosphere expands the gas in the mixture. When the mixture cools and solidifies, the result is continuous pliable polyethylene foam that can be used for various applications that include the Screening spline.
How to install a Screening spline
A screen spline is easily available in various sizes but make sure you have a sample of your old spline when you go to the hardware store. You need to get the right size for your window or door so that it can fit securely and provide protection against rain or snow. Screen splines usually come in rolls similar to an electrical wire. You can choose from a range sizes that are pretty common like .160, .180, .200 and .250 inches diameter. A screen spline made from polyethylene is best for a beginner because of its pliability. Options to foam include hard rubber and hollow core vinyl including the T-spline that is used for very thin aluminum frames. However, with the T-spline, the exact size must be purchased to make sure that it will work.
The window screen is usually held in place by a spline that runs along a channel around the perimeter of the window frame. The old spline can be removed using a sharp object. Once you pull the spline away from the channel and the frame, the window screen could come out easily. In most cases, it is easier to use a new screen spline and window screen for added protection and aesthetics. Once the screen has been creased along the window frame, the spline can be placed along the channel. You should always start at one side and use the fingers to push at the spline to make sure that it is secure. Make sure that the screen is flat and neat during the process of installation. You can also use a spline roller although it usually does not work on corners. Once the spline has been installed along the channel, any excess can be trimmed off using a sharp knife.