Liquid Latex

Liquid Latex

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Liquid latex is usually made of 33% latex, 66% water, and less than 1% ammonia (to increase its shelf life and to control the pH of the solution). Liquid latex is sold in volumes ranging from 2 ounces to 1 gallon, and its consistency is similar to latex house paint. Its consistency can be augmented with the use of additives. For example, water can be added to thin the latex, and Aerosil can be added to thicken it.[1] Cosmetic liquid latex contains approximately 0.3% ammonia, while craft and mould-making liquid latex can contain more than double this amount, giving the latter a much stronger odour.

Liquid latex is naturally clear, and dries into a translucent amber colour. Manufacturers add pigments to the product to provide opaque paint choices of multiple colours. The colour of the paint in the jar may initially look chalky or pale, but as it dries, it develops into a rich colour (for example, grey becomes black). Acrylic paint can be mixed with liquid latex for custom colours, but may not be suitable for use in cosmetic applications. In these situations, liquid makeup or food coloring can be used.

As the latex dries, it becomes quite sticky and will stick to itself if accidentally folded over. Most manufacturers offer a slick spray for latex once it is dry to remove tackiness, allowing the movement of the model's limbs. Alternatively, powders can be dusted over dried liquid latex to create metallic effects. One advantage to the tackiness of liquid latex is that it can act as an adhesive for attaching items such as zippers. Unlike most other body and face paints, liquid latex is removed by peeling it off, since water does not reactivate it.

A four-ounce jar of liquid latex can typically cover an average human body. It is typically applied using a disposable sponge and takes about five to ten minutes to dry depending on how thick it is applied. As it dries, it solidifies to a rubbery consistency and in the process ends up shrinking by approximately 3%.[2]

Removing latex from skin can cause pain or pull body hairs out, similar to waxing. Even though latex is non-toxic, some people can have an allergic reaction to it. The most severe of these happen immediately and are categorized as an immediate hypersensitivity reaction.

Fumes from the ammonia in liquid latex can irritate the eyes when it is used on the face. For this reason, it is recommended that liquid latex be allowed to vent for several minutes before being applied in this way. Appropriate liquid latex safety guidelines should be followed before the cosmetic use of liquid latex.

Liquid latex used for special effects makeup projects like scars and gashes incorporate flesh-coloured latex that is applied to the skin and then built up using materials such as tissue paper and cotton.

Liquid Latex is useful for molding due to its flexibility once dried, which allows for the casting of undercut sculpture.[3] There are several methods for making a latex mold, each with numerous variations. Below is a general outline of several methods. In any method of mold making, care must be taken to avoid air bubbles on the first layer of applied latex.

First, the original object to be molded (master) is cleaned and dried before being paced onto a non-porous substrate. Next, liquid latex is painted onto the master, leaving the bottom uncovered, but painting out around the base on the substrate. Latex must be painted on in multiple layers, allowing the latex to dry between each one. The drying process can be expedited with the use of a fan or hair dryer. The number of layers applied typically ranges from 8 to 20, though more may be necessary depending on the size of the mold. A latex mold of a chess piece 15cm in height would normally take 8 - 10 coats. Reinforcement, such as burlap, string, or cheesecloth, may be added between layers to strengthen the latex, and prevent tearing during removal from the casting.[4]

If your master is porous enough to draw moisture from the latex, you can simply dip the master into the liquid latex to make your mold. After dipping, bubbles may form on the surface of the master. If this happens, pop the bubbles with a brush and re-dip immediately. Allow latex to dry in between dips.

Once the latex is completely dried, the latex mold is then peeled off, turning the latex mold inside-out in the process. Talcum powder or soapy water should be applied to the outside of the mold before removal, to prevent the latex from sticking to itself. After popping the latex back into its original shape, you can then use the mold to cast the item in your casting medium of choice.[5]

Due to the presence of Ammonium Hydroxide, liquid latex may cause skin irritation and eye irritation. The amount of Ammonium varies greatly, and depends on the latex's intended use. Liquid Latex intended for mold-making may cause serious eye irritation.[6] If liquid latex gets in your eyes, rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do, and continue rinsing.

HX-80 Brushable Mold Making Latex is a vulcanizable, low viscosity latex featuring high wear resistance and low shrinkage for concrete casting. Best for making molds of 2-dimensional flat pieces for architectural or decorative objects. Add color with FabTone pigments. Once adequate coats are applied (generally between 10 as a minimum to 20 layers, depending on model), it cures to a highly elastic, wear resistant mold that captures perfect detail. Molds are suitable for casting plaster, concrete and wax. Applications for HX-80TM Latex include making flat molds for casting ornamental concrete, stone veneer, 2-dimensional architectural elements and wax candles. NOTE: Latex can be used for limited casting of some resins. The higher the exotherm of the casting material, the quicker the mold will degrade and become unusable. Mold Max silicone rubbers would be a better choice for production casting of resins.

Allergies: Read label carefully. Do not use this product if you have known allergies to rubber latex. If you're unsure, bring the label to your doctor for their advice. If an allergic reaction occurs, stop use and seek medical help right away.

When the second coat of nail polish is dry, use a tweezer or your nails to peel off the liquid latex. It should lift off easily, taking all the sloppy extra nail polish with it. Clean up any missed spots with a brush dipped in nail polish remover, then paint your top coat. Perfection!

ABR®-60 Liquid Latex Binder is an acrylic liquid polymer specially formulated for use as an additive for Portland cement based mixes and other high alkaline building materials. ABR®-60 Liquid Latex Binder has many uses:

The addition of ABR®-60 Liquid Latex Binder makes cement mortars hard, tough and durable to exterior exposure, creating superior flexural, tensile and impact strengths, along with excellent adhesion and resistance to abrasion. This is especially important in thin section applications, such as stuccos, underlayments, and spray coatings, and in applications where heavy traffic and excessive vibration may be involved. ABR®-60 Liquid Latex Binder is a opaque white liquid with a viscosity slightly higher than that of water. It is non-hazardous, noncorrosive and noncombustible.

The purpose of this research is to determine if latent fingerprints deposited on the exterior glass surfaces of vehicles, then covered in debris, can be recovered. Past research used liquid latex to lift soot to recover trace evidence. Recently, liquid latex has been used to recover latent fingerprints along the bottom of vehicles. In this study, a total of 216 latent fingerprints were deposited on the exterior windows of three vehicles. Three control and three experimental latent fingerprints were placed on each side window. The vehicles collected debris for either 2, 3, or 4 weeks. After debris collection, liquid latex was applied to the experimental sections. The underlying fingerprints were developed with white granular powder. Control fingerprints were developed directly with white granular powder. A chi-square test revealed a significant difference in fingerprint recovery between the control and liquid latex method (X2 = 9.026, d.f. = 1, p = 0.003). An odds ratio determined that the control method increases the probability of latent fingerprint recovery by 2.68. Fisher's exact test indicated that there is no statistically significant difference between the detail of the recovered control and experimental fingerprints (p = 0.065). This study demonstrates that recovery of fingerprints is possible using the liquid latex method; however, the control method recovers more fingerprints on the glass exterior of vehicles. If latent fingerprints are thought to be present on the exterior glass surfaces of vehicles, the control method should be used to improve vehicle processing by investigators.

So, essentially, the biggest difference when it comes to liquid latex and spirit gum is that spirit gum is used just to adhere prosthetics or embellishments onto your skin whereas liquid latex helps create the actual effects.

Now that you know the differences between liquid latex and spirit gum, start working on your next horrifying Halloween look! Shop all of our special-effects makeup and show us what you come up with! Send us pictures of your final look to spiritblog@spirithalloween.com for a chance to be featured in a future post.

Liquid Latex is entirely student run: Students choreograph dances, design latex costumes, and paint mostly nude models with latex paint. Liquid Latex is a favorite amongst Brandeis students, with a full house of approximately 700 attending annually.

The process for Liquid Latex begins in November when applications for piece designers are due. The applications include designs for models and a statement of the overall theme of the piece. Hulse says the club's executive board makes its decisions based on how well the designers use latex paints and how well thought-out the pieces are. 781b155fdc