Formlabs Tough Resin Tough Resin Review

Published on September 10, 2015

Formlabs Tough Resin Tough Resin Review



    We recently purchased a batch of Formlabs Tough Resin photopolymer resin , tested it on a Form 1+ printer , and are in a hurry to share our impressions.



    The first thing you need to pay attention to is the Formlabs promo video , if you haven’t seen it yet



    Characteristics

    Tough is positioned by the creators as a strong, reliable, resistant to abrasion and deformation material, on the Formlabs website you can find data on comparative tests of various materials and a new resin:





    Appearance The



    photopolymer comes in a standard dark brown bottle with a volume of 1 liter. The resin itself is translucent, with a blue tint, thick and sticky, as we thought it was the thickest resin from Formlabs .

    The finished product has a dark blue color, and partial transparency in thin places. To the touch is quite pleasant, resembles tough rubber.



    You can see the transparency of thin elements.

    The working process

    The difference in working with this photopolymer from working with other resins is expressed in two features:
    - We need wider points of contact between the support and the model.
    - Need more support!


    The diameter of the contact point is 0.7 mm. Layer thickness 0.05 mm.

    The resin is more viscous than other resins and this affects the supports, the use of Tough resin showed that it is not recommended to reduce the number of supports exhibited by PreForm, it is better to add more!

    It is likely that the polymerized layers of the photo polymer adhere to the bottom of the bath more strongly than other resins, and as a result, the model’s chance to come off is higher. Excessive stickiness is generally the problem of this resin, it is washed off worse, and sometimes removing the product from the platform is a real challenge, and it is better to have a spatula-blade and nippers on hand.

    Also, due to the high density, a problem of bubbles in the product may occur, although they are usually small and hide inside large areas.

    There is still a feature in post-processing; it is recommended that at least two hours are recommended to withstand the model under an ultraviolet lamp.



    Clasp Model



    Flexibility Test


    After some time, the sample returns to its shape.



    Thin elements bend more easily, almost like Flexible resin.


    You may notice a slight bend in the product.


    The hammer survived many trials, even beating with an iron hammer!

    Main advantages:
    In general, testing showed Tough resin as very capricious, but nonetheless excellent products, durable and ductile. The advantages include:
    - Product durability (Significantly higher than that of other photo polymers)
    - Friction resistance (This gear polymer will make wonderful gears and moving parts of the mechanism)
    - Flexibility ( Tough resin can be bent stronger than other photo polymers and not break , after bending, the product returns to its original shape)
    - Impact resistance (The combination of the above properties gives the resin increased resistance to impact and pressure, the product may bend, but will not break)
    Main disadvantages:
    - Low resistance to high temperature (Low glass transition temperature and thermal deformation lead to problems of deformation of the product under prolonged exposure to high temperatures model bends and flows, especially if it was not allowed to dry properly after growth)
    - Low detailing products (questionable, but still negative, the maximum print resolution of this with ols 50 microns to 25 microns in other polymers photos)
    - High cost (The most important minus in my opinion, this resin is perfect for various large functional parts, but only if it is assumed that large enough products will not be printed from it, the cost changes depending on the course and can be found here )
    Conclusion
    Excellent, although capricious pitch, if you print a lot of different products on Form 1/1 +, it is useful to have a liter or two in stock, for special cases. And something durable and functional is easier to print from the same ABS on an FDM printer, it will come out cheaper and not much worse.