Almost all epoxies used in fiber optics are two part and have dissimilar mix ratios. Purchasing bulk material requires the most amount of handling. The resin and hardener will have to precisely weigh out before mixing. Any mistakes here will lead to problems down the road.
Another often overlooked aspect in going this way is the additional exposure to the material. The work area are must be very well ventilate to reduce the exposure. These chemical are generally very safe to work with (please be sure to read any and all Safety Data Sheets before using or contact me), but extended or increased exposure can accelerate allergic reactions like skin and eye irritation. By handling smaller amounts over less time some allergic reactions can be avoided.
READ THE FULL BLOG: Which Epoxy Packaging is Right for you?
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