I'm new-ish to astro but read about the contrast benefits with flocking. I bought a 1m roll for my 150 x 600mm refelctor and it was sufficient to do the job. I cut it into strips of approx 120mm x 500mm (or just below the spider to the primary mirror) and applied whilst the tube was laid flat, overlapping by approx 20mm. As other have suggested make sure to tape or vacuum the flock to reduce bits first. I then cut pieces to cover the end of the focuser tube and above the spider. Its easy to remove if you make a mistake and sticks more aggressively after a few hours. Looks neat and should do the intended job.

The black painted interior of my scopes tube (Celestron 925) became pitted and I was looking at options of paint etc when I was made aware of flocking on SGL. I contacted FLO and was given an excellent service with solid advice, which included FLO referring my issue to Celestron directly in the US. The overall consensus was to prep and paint the tube or flock it. The flocking seemed favourable due to ease and cost £7 a roll) so I ordered some from FLO. It within 2 working days, was very easy to apply and the results are amazing! So much of a darker black than any paint could offer and no more worries of the interior pitting. Such a cheap upgrade in comparison to other scope gear and definitely worth the purchase if you have similar issues. Of note, the pitting was due to excess condensation and nothing to do with the quality or build of the scope!

Bought 2 rolls of this for my Skywatcher 200P, had enough left over to cover the focus tube. I can't believe how much darker the tube looks compared with how it was. Not had a chance to try it out yet due to the weather.

I haven’t had the chance yet to try this flocking out but on first impressions it looks and feels good. The delivery service was super fast. Ordered it on Thursday and it was here on the Friday 😊

It's easy to work with, sticks well, and inside the OTA is now pitch black.

I bought this flocking material to flock with my Askar400 refractor which had a serious off-axis reflection issue. The material was very easy to work with and stayed put inside the internal wall without issue. From the test shots along the way, I noticed it greatly increase the contrast of the image with a fix exposure values. A lot of background "glow" was eliminated from the after images which came across as skyglow/light pollution. I tried a bit of backing material from a local craft store and it was not as dark, thin, and shed a lot of lint.
This material also sheds a bit of lint(very short and fine ones), but I use some painter tapes to dap on the surfaces to pull out the loose bits. I give it 4 stars only because I do not have experience with another flocking material besides the one from the craft store.

After flocking my SW 90mm MAK I've noticed great improvement in contrast. Handling is a bit tricky so I stuck onto acetate sheets, cut to size, job done.
Beware though thorough cleaning required before used inside a telescope as it sheds tiny fluff so I ended up dismantling my MAK and cleaning it.
Might get away with some sticky tape to remove the excess fluff but lint roller seem to work best. Overall recommended.

Excellent product and service

Very good product,i shall buy again.Excellent service from FLO as always!

Good quality flocking, but worth shaking or gently brushing off 'black dust' and using adhesive tape to lift off any light coloured particles before fitting to telescope.