New Fashion Design for SV-995 Neutral Silicone Sealant to Puerto Rico Factories

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Description

SV – 995 neutral silicone sealant structure is a kind of one-component, construction curtain wall structure of room temperature curing glue, can be used in all kinds of curtain wall joints and waterproof seal, also can be used for all kinds of aluminum alloy, glass doors and Windows seal assembly

Where  to use

1.Curtain wall joints and waterproof seal

2.Aluminum alloy, glass doors and Windows seal assembly

Key Features

1. 100% silicone

2. Easy to use

3. Waterproofing and weatherproofing

4. Fast curing speed, high strength

5. 12.5% movement capability

Technical data sheet

Color

Black，White，Gray

Package

300ml in cartridge * 24 per box, 590ml in sausage *20 per box

Shelf life

12 months

Note

If you want the TDS or MSDS or other details, please contact with our sales person.

Short tutorial about using UV curable solder mask.
It is an update to my original PCB making tutorial: https://www.youtube.com/watch?v=p2kFazl-aEE
See explanation below:

In this video I used standard transparency film printed with laser printer. Usually I use optical film because of greater contrast, but here I wanted to present a method doable by everybody.

The solder mask paint I used can be bought from ebay:

https://www.ebay.com/itm/PCB-UV-Curable-Solder-Mask-Repairing-Paint-Green-100g-/200622507317?pt=LH_DefaultDomain_0&hash=item2eb6088535

It is pretty cheap, and enough for a lifetime for a hobbyist. It has very good scratch resistance, resistant to chemicals, heat resistance even to 320*C soldering iron, and gives good surface finish used with cellophane.

The key for a good, well cured coating is to obtain an even and thin film on the PCB.
The steps are the followings:
- Prepare the PCB – it should be cleaned thoroughly after etching.
- Prepare the film: It is crucial to have a good contrast otherwise either you need to lower the exposure and it will cure partially and will not adhere well to the board, or with a longer exposure it can cure on the pads also and you can not wash it down.
For a good contrast with laser transparency – print one normal and one mirrored image, then put them together with the toner part facing each other to prevent shadow ghosting.
- Stir well the paint (it is very viscous) and put a droplet in the middle of the PCB board. You can stretch it a bit but do not extend it on the board (it should be done using the cellophane to prevent air bubles)
- Put the cellophane over the board with the paint droplet in the middle, and stretch the paint using a credit card or similar. Don’t press it too hard otherwise the cellophane will stretch and will form wrinkles.
- Stretch the paint evenly on the surface of the board trying to achieve the thinnest coating possible.
- Put the film over the cellophane, align it to the PCB’s artwork, cover with a sheet of glass and press it some more to make the whole ting more even.
- Expose under UV light ( I used 12W on 20cm for 10min 30sec. )
- Peel down carefully the cellophane and wipe down the uncured paint from the pads.
- Expose for further 10min under UV light to harden the paint further (you can use the sun light also for this)
- Proceed with the other side for double side boards.
- Enjoy the result.

With a good film I obtained 50 micron details also (square pins for a 0201 component)

Details about the exposure device:

https://nagyizeeuv.blogspot.ro/

Good luck

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Looks are important. While you enjoying the luxury of your vehicle from the inside, it’s still important to keep the outside looking fresh and new. The first step is to have your car washed. We recommend doing so at least once a month. When left on too long, bugs, bird droppings and other things can permanently stain your vehicle’s finish. Plus, it’s just safer to drive with clean headlights and mirrors. Occasionally waxing your car is an excellent way to prevent rust. Doing so will build up a protective coat to shield the paint from harsh weather conditions! Make sure to apply wax on the lower half of your car as well as wash the salt off in the winter time. Another popular product on the market right now is paint sealants. Applying a sealant regularly will extend the life and shine of your paint finish while also protecting your vehicle from UV rays and moisture! It won’t take long to put on, but the showroom shine lasts an impressive amount of time! It is very crucial to fix any chips or scratches in your paint as soon as you notice them. It doesn’t take long for rust to start forming at the spot. With your car’s VIN number a service center should be able to match the paint exactly.

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